Bjarni Jónsson's contributions in algebra
type: Item
instance of: scholarly article
title: Bjarni Jónsson's contributions in algebra
zbMATH Open document ID: 0806.08001
DOI: 10.1007/BF01221790
author: Kirby A. Baker
published in: Algebra Universalis
publication date: 1994-07-18T00:00:00Z
review text: The paper under review is dedicated to Professor Bjarni Jónsson on his 70th birthday. It consists of two parts. The first one is a brief survey of his main contributions in the following areas; Boolean algebras, product decompositions, other constructions for relational structures, constructions in varieties (free algebras, automorphism groups, congruence lattices, free products, amalgamation and pure embeddings, algebraic extensions, congruence varieties), groups and semigroups, expository works (``pure'' lattice theory is not included). The second part is a more detailed summary of Jónsson's work on congruence distributivity and the development to which it has led. A bibliography of 406 papers containing references to Jónsson's results indicates his influence.
Mathematics Subject Classification ID: 08-03
Mathematics Subject Classification ID: 01A70
Mathematics Subject Classification ID: 08B10
Mathematics Subject Classification ID: 01A65
Mathematics Subject Classification ID: 08A02
zbMATH DE Number: 590884
zbMATH Keywords: relational structures
zbMATH Keywords: varieties
zbMATH Keywords: congruence distributivity
reviewed by: V. N. Saliĭ
MaRDI profile type: Publication
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cites work: Boolean powers of groups
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cites work: A Sheaf-Theoretic Duality Theory for Cylindric Algebras
cites work: Combinatorial aspects of relations
cites work: Galois Theory for Cylindric Algebras and its Applications

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Three examples on hopficity in torsion-free abelian groups

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Q5619138

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Q5642555

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Q4166795

Bjarni Jónsson's contributions in algebra (cites work)
cites work: On congruence n-distributivity of ordered algebras

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Congruence distributive quasivarieties whose finitely subdirectly irreducible members form a universal class

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Dualities for Equational Classes of Brouwerian Algebras and Heyting Algebras

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Weak Injectivity and Congruence Extension in Congruence-Distributive Equational Classes

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Exponents of Finite Simple Lattices

Bjarni Jónsson's contributions in algebra (cites work)
cites work: A representation theory for the variety generated by the triangle

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Exponents of lattice-ordered algebras

Bjarni Jónsson's contributions in algebra (cites work)
cites work: An application of Whitman's condition to lattices with no infinite chains

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Injectivity and Boolean powers

Bjarni Jónsson's contributions in algebra (cites work)
cites work: A Characterization of Modularity for Congruence Lattices of Algebras*

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Injectives in non-distributive equational classes of lattices are trivial

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Injectivity in Equational Classes of Algebras

Bjarni Jónsson's contributions in algebra (cites work)
cites work: The congruence extension property and subdirectly irreducible algebras - an example

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Splitting algebras and a weak notion of projectivity

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Lattice conditions implying congruence modularity

Bjarni Jónsson's contributions in algebra (cites work)
cites work: On modular lattices with four generators

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Implikative BCK‐Algebren

Bjarni Jónsson's contributions in algebra (cites work)
cites work: DIE ENDLICHEN, SUBDIREKT IRREDUZIBLEN ELEMENTE DER VARIETÄT DER BESCHRÄNKTEN KOMMUTATIVEN BCK‐ALGEBREN

Bjarni Jónsson's contributions in algebra (cites work)
cites work: ALGEBRAISCHE CHARAKTERISIERUNGEN PRÄPRIMALER ALGEBREN

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Aspects of distributivity

Bjarni Jónsson's contributions in algebra (cites work)
cites work: A compact space with a measure that knows which sets are homeomorphic

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Q4732498

Bjarni Jónsson's contributions in algebra (cites work)
cites work: A variety generated by a finite algebra with \(2^{\aleph_0}\) subvarieties

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Errata to ``An alternative construction of Conway's ordered field No.''

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Homogeneous Universal Modules.

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Algebraic closure operators and strong amalgamation bases

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Isomorphism invariants for Abelian groups modulo bounded groups

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Varieties of lattice-ordered algebras

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Semi-local localizations of rings and subdirect decompositions of modules

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Q5665220

Bjarni Jónsson's contributions in algebra (cites work)
cites work: A Note on Universal Homogeneous Models.

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Symmetries of directed graphs and the chinese remainder theorem

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Model theory for universal classes with the amalgamation property: A study in the foundations of model theory and algebra

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Algebraic and equational semi-maximality; equational spectra. II

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Varieties generated by modular lattices of width four

Bjarni Jónsson's contributions in algebra (cites work)
cites work: The structure of modular lattices of width four with applications to varieties of lattices

Bjarni Jónsson's contributions in algebra (cites work)
cites work: The Variety of Modular Lattices is Not Generated by its Finite Members

Bjarni Jónsson's contributions in algebra (cites work)
cites work: On Jónsson's theorem

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Q3775604

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Congruence lattices of semilattices

Bjarni Jónsson's contributions in algebra (cites work)
cites work: 3-3 lattice inclusions imply congruence modularity

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Algebra valued functors in general and tensor products in particular

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Weakly associative lattices with congruence extension property

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Q4071781

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Q4184889

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Congruence-lattices of discrete RUCS varieties

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Uniform congruence schemes

Bjarni Jónsson's contributions in algebra (cites work)
cites work: A nonassociative extension of the class of distributive lattices

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Strong amalgamation of distributive lattices

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Connections between congruence-lattices and polynomial properties

Bjarni Jónsson's contributions in algebra (cites work)
cites work: The spectrum of an equational class of groupoids

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Q5618461

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Q5673086

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Note on direct decompositions of torsion-free abelian groups

Bjarni Jónsson's contributions in algebra (cites work)
cites work: On the distributivity of a lattice of lattice-congruences

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Unique reducibility of subsets of commutative topological groups and semigroups.

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Cylindric and Polyadic Algebras

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Note on congruences of a direct product of algebras

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Homogeneity conditions in graphs

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Q4154864

Bjarni Jónsson's contributions in algebra (cites work)
cites work: The lattice of equational classes of idempotent semigroups

Bjarni Jónsson's contributions in algebra (cites work)
cites work: A Concrete Representation Theorem for Intervals of Multirelations

Bjarni Jónsson's contributions in algebra (cites work)
cites work: On residual varieties of groups

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Universal horn classes categorical or free in power

Bjarni Jónsson's contributions in algebra (cites work)
cites work: The number of non-isomorphic denumerable models of certain universal Horn classes

Bjarni Jónsson's contributions in algebra (cites work)
cites work: A portrait of Alfred Tarski

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Varieties of complex algebras

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Q5809225

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Power-cancellation of groups and modules

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Q3800003

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Automorphism and subalgebra structure in algebras of finite type

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Automorphism Groups of Algebras of Finite Type

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Cofinality of algebras

Bjarni Jónsson's contributions in algebra (cites work)
cites work: A selection theorem for Boolean correspondences.

Bjarni Jónsson's contributions in algebra (cites work)
cites work: A generalization of Stone's representation theorem for Boolean algebras

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Two Mal'cev-type theorems in universal algebra

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Q4200260

Bjarni Jónsson's contributions in algebra (cites work)
cites work: The Structure of Pseudocomplemented Distributive Lattices. II: Congruence Extension and Amalgamation

Bjarni Jónsson's contributions in algebra (cites work)
cites work: The amalgamation property in equational classes of modular lattices

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Products of lattice varieties

Bjarni Jónsson's contributions in algebra (cites work)
cites work: On the Existence of Rigid Compact Ordered Spaces

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Q3249758

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Q4152595

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Algebras in permutable varieties: Geometrical properties of affine algebras

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Congruence modularity is permutability composed with distributivity

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Geometrical methods in congruence modular algebras

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Closed Hulls in Infinite Symmetric Groups

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Amalgamation for Inverse and Generalized Inverse Semigroups

Bjarni Jónsson's contributions in algebra (cites work)
cites work: On some fundamental problems concerning isomorphism of Boolean algebras

Bjarni Jónsson's contributions in algebra (cites work)
cites work: A duality for Boolean algebras with operators

Bjarni Jónsson's contributions in algebra (cites work)
cites work: On modules over rings of type (n, k)

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Large superuniversal metric spaces

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Some Interconnections Between Modern Algebra and Mathematical Logic

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Extending Boolean operations

Bjarni Jónsson's contributions in algebra (cites work)
cites work: A family of countable homogeneous graphs

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Countable homogeneous relational structures and ℵ0-categorical theories

Bjarni Jónsson's contributions in algebra (cites work)
cites work: S-verklebte Summen von Verbänden

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Q4195012

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Complete Universal Locally Finite Groups

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Universal Locally Finite Central Extensions of Groups

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Join algebras

Bjarni Jónsson's contributions in algebra (cites work)
cites work: On Cancellation in Groups

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Finite fixed point algebras are subdiagonalisable

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Covering relations among lattice varieties

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Lattices of width three generate a nonfinitely based variety

Bjarni Jónsson's contributions in algebra (cites work)
cites work: On the fundamental subdirect facorization theorems of primal algebra theory

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Q5686073

Bjarni Jónsson's contributions in algebra (cites work)
cites work: The Amalgamation Property for G-Metric Spaces

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Spaces Homeomorphic to (2 a ) a . II

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Undecidability of Brouwerian semilattices

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Reduced sub-powers and the decision problem for finite algebras in arithmetical varieties

Bjarni Jónsson's contributions in algebra (cites work)
cites work: The decision problem for finite algebras from arithmetical varieties with equationally definable principal congruences

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Intervals in the lattice of varieties

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Bounded and well-placed theories in the lattice of equational theories

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Varieties of groupoids with comprehensive free products

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Axiom systems for first order logic with finitely many variables

Bjarni Jónsson's contributions in algebra (cites work)
cites work: When is a variety a topos ?

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Collapsed toposes and cartesian closed varieties

Bjarni Jónsson's contributions in algebra (cites work)
cites work: ÜBER EINE VERALLGEMEINERUNG DER ROBINSONSCHEN MODELLVERVOLLSTÄNDIGUNG I

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Zur Konstruktion vollständiger Polaritätsverbände.

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Primitive Klassen von modularen S-Algebren.

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Varieties of modular p-algebras

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Splitting p-algebras

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Q4769085

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Some model theoretic results for \(\omega\)-logic

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Universal homogeneous Boolean algebras

Bjarni Jónsson's contributions in algebra (cites work)
cites work: On the number of homogeneous models of a given power

Bjarni Jónsson's contributions in algebra (cites work)
cites work: The structure of countable Boolean algebras

Bjarni Jónsson's contributions in algebra (cites work)
cites work: The equational classes generated by single functionally precomplete algebras

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Q4124874

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Injectivity and congruence extension property in congruence distributive equational classes

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Torsion-free Abelian groups of finite rank without nilpotent endomorphisms

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Q3803348

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Equations not preserved by complete extensions

Bjarni Jónsson's contributions in algebra (cites work)
cites work: On primal algebras

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Extending Congruence Relations

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Homogeneous Universal Models of Universal Theories

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Global subdirect products

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Identities satisfied by a finite ring

Bjarni Jónsson's contributions in algebra (cites work)
cites work: On a problem of Sikorski in the set representability of Boolean algebras

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Countable Homogeneous Tournaments

Bjarni Jónsson's contributions in algebra (cites work)
cites work: The Structure of Pseudocomplemented Distributive Lattices. I: Subdirect Decomposition

Bjarni Jónsson's contributions in algebra (cites work)
cites work: A property of the lattice of equational theories

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Elementary properties of free extensions

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Relatively free implicative semi-lattices

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Almost distributive lattice varieties

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Equational Classes of Distributive Pseudo-Complemented Lattices

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Direct sums in general algebra

Bjarni Jónsson's contributions in algebra (cites work)
cites work: The representation of relational algebras

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Identities in Two-Valued Calculi

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Identities in Finite Algebras

Bjarni Jónsson's contributions in algebra (cites work)
cites work: The representation of relation algebras. II

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Properties preserved under homomorphism

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Properties preserved under algebraic constructions

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Duality for groups

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Q5529483

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Some sufficient conditions for the representability of relation algebras

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Some Varieties Containing Relation Algebras

Bjarni Jónsson's contributions in algebra (cites work)
cites work: A proof of Baker's finite-base theorem on equational classes generated by finite elements of congruence distributive varieties

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Independence in abstract algebras results and problems

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Equational Bases for Lattice Theories.

Bjarni Jónsson's contributions in algebra (cites work)
cites work: A method for obtaining refinement theorems, with an application to direct products of semigroups

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Equational Bases and Nonmodular Lattice Varieties

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Para primal varieties: A study of finite axiomatizability and definable principal congruences in locally finite varieties

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Finite equational bases for congruence modular varieties

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Structural diversity in the lattice of equational theories

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Covering in the lattice of equational theories and some properties of term finite theories

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Die primitiven Klassen arithmetischer Ringe

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Implication algebras are 3-permutable and 3-distributive

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Near unanimity identities and congruence distributivity in equational classes

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Order relations on symmetric semigroups of transformations and on their homomorphic images

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Completions of B<scp>OOLEAN</scp> Algebras with operators

Bjarni Jónsson's contributions in algebra (cites work)
cites work: On Equational Classes of Algebraic Versions of Logic I.

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Q4175603

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Categoricity in Power

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Homogeneous Universal Models.

Bjarni Jónsson's contributions in algebra (cites work)
cites work: The classification of certain classes of torsion free Abelian groups

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Direct Products and Sums of Torsion-Free Abelian Groups

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Remarks on abstract algebras having bases with different number of elements

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Varieties whose congruences satisfy certain lattice identities

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Lattice varieties covering \(V(L_ 1)\)

Bjarni Jónsson's contributions in algebra (cites work)
cites work: The Stone Space of the Saturated Boolean Algebras

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Adequate Ultrafilters of Special Boolean Algebras

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Filtered products of congruences

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Cylindric-relativised set algebras have strong amalgamation

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Varieties of implicative semilattices

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Varieties of implicative semi-lattices. II

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Varieties of groups

Bjarni Jónsson's contributions in algebra (cites work)
cites work: On Malcev conditions

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Identical relations in finite groups

Bjarni Jónsson's contributions in algebra (cites work)
cites work: An Almost Everywhere Direct Power

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Regular Identities in Lattices

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Equational Theories of Algebras with Distributive Congruences

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Modular subalgebra lattices

Bjarni Jónsson's contributions in algebra (cites work)
cites work: The ascending varietal chain of a variety of semigroups

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Amalgamation, congruence-extension, and interpolation properties in algebras

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Base-undecidable properties of universal varieties

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Minimal, locally-finite varieties that are not finitely axiomatizable

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Finite Basis Theorems for Relatively Congruence-Distributive Quasivarieties

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Two model theoretic ideas in independence proofs

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Cylindric Algebras and Algebras of Substitutions

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Q4190635

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Distributivity and Permutability of Congruence Relations in Equational Classes of Algebras

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Completeness in arithmetical algebras

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Local Malcev Conditions

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Equationally semi-complete varieties

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Characterizations of arithmetical varieties

Bjarni Jónsson's contributions in algebra (cites work)
cites work: The automorphisms groups of symmetric algebras

Bjarni Jónsson's contributions in algebra (cites work)
cites work: A note on the join and subdirect product of equational classes

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Simple algebras and multiplicity types

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Q4134038

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Q5648359

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Q5648360

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Every finite lattice can be embedded in a finite partition lattice

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Equational classes generated by finite algebras

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Demi-semi-primal algebras and Mal'cev-type conditions

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Algebras with minimal spectrum

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Varieties with \(n\)-principal compact congruences

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Equationally Complete Discriminator Varieties of Groupoids

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Finitely determined arithmetical varieties need not be universally- finite

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Der Verband der normalen verzweigten Modallogiken

Bjarni Jónsson's contributions in algebra (cites work)
cites work: On subdirectly irreducible lattice-ordered semigroups

Bjarni Jónsson's contributions in algebra (cites work)
cites work: On the structure of subalgebra systems of idempotent entropic algebras

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Ultrahomogeneous Structures

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Nonmodular lattice varieties

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Universal algebras with all operations of bounded range

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Q3950607

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Remarks on Some Theorems of Rado on Universal Graphs

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Topology and duality in modal logic

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Distributive Lattices with a Dual Endomorphism

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Semi-de Morgan algebras

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Demi-pseudocomplemented lattices: Principal congruences and subdirect irreducibility

Bjarni Jónsson's contributions in algebra (cites work)
cites work: The algebraic closure of a function

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Programs as partial graphs. I: Flow equivalence and correctness

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Relation algebras: Concept of points and representability

Bjarni Jónsson's contributions in algebra (cites work)
cites work: An undecidability result for relation algebras

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Torsion-free extensions of torsion-free abelian groups

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Q5638373

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Notes on combinatorial set theory

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Categoricity of theories in \(L_{\kappa \omega}\), with \(\kappa\) a compact cardinal

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Interpolation property for extensions of intuitionistic provability logic

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Universal homogeneous algebras

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Mal'cev varieties

Bjarni Jónsson's contributions in algebra (cites work)
cites work: A Cancellation Criterion for Finite-Rank Torsion-Free Abelian Groups

Bjarni Jónsson's contributions in algebra (cites work)
cites work: On endomorphism structure for algebras over a fixed set

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Q4063515

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Every idempotent plain algebra generates a minimal variety

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Residually small varieties

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Fixed points of endomorphisms

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Characterizing Mal'cev conditions

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Products of absolute retracts

Bjarni Jónsson's contributions in algebra (cites work)
cites work: The fine spectrum of a variety

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Pure Compactifications in Quasi-Primal Varieties

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Baker's finite basis theorem

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Q3853703

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Some applications of the term condition

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Groups Acting on Infinite Dimensional Projective Spaces

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Semantic analysis of tense logics

Bjarni Jónsson's contributions in algebra (cites work)
cites work: A note on the unique factorization of abstract algebras

Bjarni Jónsson's contributions in algebra (cites work)
cites work: On the Universal Theory of Classes of Finite Models

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Laws in finite loops

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Models of complete theories

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Some Aspects of the Theory of Models

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Local quasi-isomorphisms of torsion free Abelian groups

Bjarni Jónsson's contributions in algebra (cites work)
cites work: An isomorphic refinement theorem for Abelian groups

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Cancellation of modules and groups and stable range of endomorphism rings

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Abelian groups which admit only nilpotent multiplications

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Congruence lattices of powers of an algebra

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Varieties having Boolean factor congruences

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Primitive subsets of lattices

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Completions of Boolean algebras with partially additive operators

Bjarni Jónsson's contributions in algebra (cites work)
cites work: The Amalgamation Property, the Universal-Homogeneous Models, and the Generic Models.

Bjarni Jónsson's contributions in algebra (cites work)
cites work: Q3783273

Bjarni Jónsson's contributions in algebra (cites work)
cites work: MODAL COMPANIONS OF SUPERINTUITIONISTIC LOGICS: SYNTAX, SEMANTICS, AND PRESERVATION THEOREMS

Bjarni Jónsson's contributions in algebra (full work available at URL)
full work available at URL: https://doi.org/10.1007/bf01221790

Bjarni Jónsson's contributions in algebra (OpenAlex ID)
OpenAlex ID: W2033242129