Incidence algebras that are uniquely determined by their zero-nonzero matrix pattern.

DOI10.1016/j.laa.2008.09.042zbMath1167.16024OpenAlexW1992136430MaRDI QIDQ999784

Marcel Wild

Publication date: 10 February 2009

Published in: Linear Algebra and its Applications (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1016/j.laa.2008.09.042

zbMATH Keywords

incidence algebrasisomorphism problem

Mathematics Subject Classification ID

Endomorphism rings; matrix rings (16S50) Combinatorics of partially ordered sets (06A07) Canonical forms, reductions, classification (15A21) Reflexivity and semi-reflexivity (46A25)

Related Items (2)

On incidence algebras and their representations ⋮ Output-polynomial enumeration of all fixed-cardinality ideals of a poset, respectively all fixed-cardinality subtrees of a tree.

Cites Work

• Unnamed Item
• A theory of finite closure spaces based on implications
• Structural matrix algebras and their lattices of invariant subspaces
• Distinguished Rings of Linear Transformations
• Structure of incidence algebras and their automorphism groups

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