| Publication | Date of Publication | Type |
|---|
| Binary operations for homotopy groups with coefficients | 2018-10-29 | Paper |
| The Gottlieb group of a wedge of suspensions | 2014-09-30 | Paper |
| Introduction to homotopy theory | 2011-08-02 | Paper |
| Comultiplications on a wedge of two spheres | 2011-07-01 | Paper |
| Properties of comultiplications on a wedge of spheres | 2010-05-19 | Paper |
| Homotopy classes of self-maps and induced homomorphisms of homotopy groups | 2006-08-01 | Paper |
| Duan's fixed point theorem: proof and generalization | 2006-05-29 | Paper |
| Homotopy actions, cyclic maps and their duals | 2005-10-27 | Paper |
| The Lefschetz-Hopf theorem and axioms for the Lefschetz number | 2005-09-13 | Paper |
| The cone length and category of maps: pushouts, products and fibrations | 2005-07-05 | Paper |
| The sectional category of a map | 2004-10-15 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4409977 | 2004-01-13 | Paper |
| Noncommutativity of the group of self homotopy classes of Lie groups | 2003-03-10 | Paper |
| Nearly trivial homotopy classes between finite complexes | 2003-03-10 | Paper |
| THE SEMIGROUP OF SELF-HOMOTOPY CLASSES WHICH INDUCE ZERO ON HOMOTOPY GROUPS | 2003-01-05 | Paper |
| The group of homotopy equivalences of products of spheres and of Lie groups | 2002-12-01 | Paper |
| THE CONE LENGTH OF A PRODUCT OF CO-H-SPACES AND A PROBLEM OF GANEA | 2002-10-22 | Paper |
| The inverses of an \(H\)-space | 2002-09-17 | Paper |
| https://portal.mardi4nfdi.de/entity/Q2734854 | 2002-04-11 | Paper |
| Equalizers and coactions of groups | 2002-03-05 | Paper |
| Co-actions of groups | 2002-02-19 | Paper |
| https://portal.mardi4nfdi.de/entity/Q2734876 | 2001-11-29 | Paper |
| Rational obstruction theory and rational homotopy sets | 2001-09-23 | Paper |
| On Whitehead's inequality, \(\text{nil}[X,G\leq\text{cat}X\)] | 2001-08-29 | Paper |
| Homotopy classes that are trivial mod \({\mathcal F}\) | 2001-07-31 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4249383 | 2000-08-03 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4896559 | 2000-08-03 | Paper |
| Equivalent definitions of the Ganea fibrations and cofribations | 2000-07-24 | Paper |
| Self-homotopy equivalences which induce the identity on homology, cohomology or homotopy groups | 2000-01-25 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4344421 | 2000-01-12 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4227247 | 1999-09-30 | Paper |
| Comultiplications in algebra and topology | 1998-11-26 | Paper |
| Homotopy coalgebras and \(k\)-fold suspensions | 1998-08-30 | Paper |
| Comultiplication on monoids | 1998-04-22 | Paper |
| Comultiplications on free groups and wedges of circles | 1998-03-24 | Paper |
| Equivalence classes of homotopy-associative comultiplications of finite complexes | 1997-05-25 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4870915 | 1996-11-24 | Paper |
| Some properties of Hopf-type constructions | 1996-10-21 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4326994 | 1996-02-06 | Paper |
| Co-H-Structures on Moore Spaces of Type (G, 2) | 1996-01-15 | Paper |
| Co-H-structures on equivariant Moore spaces | 1995-12-17 | Paper |
| Minimal models of loop spaces and suspensions | 1994-01-31 | Paper |
| Rational co-H-spaces | 1991-01-01 | Paper |
| Loop-theoretic properties of H-spaces | 1991-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3198542 | 1990-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q3490630 | 1990-01-01 | Paper |
| Categories equivalent to the category of rational H-spaces | 1989-01-01 | Paper |
| Formal differential graded algebras and homomorphisms | 1988-01-01 | Paper |
| Sullivan's Minimal Models and Higher Order Whitehead Products | 1978-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4104586 | 1976-01-01 | Paper |
| The Number of Multiplications on H-Spaces of Type (3, 7) | 1975-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q4054384 | 1974-01-01 | Paper |
| Whitehead Products as Images of Pontrjagin Products | 1971-01-01 | Paper |
| Shorter Notes: Associative, Abelian H-Spaces Have Trivial Postnikov Invariants | 1970-01-01 | Paper |
| SOME PROPERTIES OF THE EXOTIC MULTIPLICATIONS ON THE THREE-SPHERE | 1969-01-01 | Paper |
| A homological method for computing certain Whitehead products | 1968-01-01 | Paper |
| On maps of H-spaces | 1967-01-01 | Paper |
| https://portal.mardi4nfdi.de/entity/Q5550910 | 1967-01-01 | Paper |
| Zum Begriff des \(H\)-Raumes mod \(\mathcal F\) | 1965-01-01 | Paper |
| Commutators and cup products | 1964-01-01 | Paper |
| Groups of homotopy classes. Rank formulas and homotopy commutativity. | 1964-01-01 | Paper |
| HOMOTOPY COMMUTATORS OF FINITE ORDER (II) | 1964-01-01 | Paper |
| The group of homotopy equivalences of a space | 1964-01-01 | Paper |
| The Hurewicz Homomorphism and Finite Homotopy Invariants | 1964-01-01 | Paper |
| An Example for Homotopy Groups with Coefficients | 1964-01-01 | Paper |
| Homotopy products for H-spaces | 1963-01-01 | Paper |
| On the number of multiplications of an H-space | 1963-01-01 | Paper |
| HOMOTOPY COMMUTATORS OF FINITE ORDER (I) | 1963-01-01 | Paper |
| The generalized Whitehead product | 1962-01-01 | Paper |
