Based on the binary product described by any Latin square, the Hadamard quasigroup product is introduced in this paper as ...

Let G be a group which admits the structure of an iterated product of central extensions and semidirect products of abelian ...

Given a basis equation image for 2-cocycles equation image over a group G of order equation image, we describe a nonlinear ...

For a simplicial augmented algebra K, Eilenberg–Mac Lane constructed a chain map . They proved that g is a reduction ...

This review tackles the problem of the high computational complexity lying in most algorithms in algebraic topology and ...

An algorithm for calculating a set ofgenerators ofrepresentative 2-cocycles on semidirect product offinite abelian groups ...

One of the fastest known general techniques for computing permanents is Ryser’s formula. On this note, we show that this ...

We describe a notebook in Mathematica which, taking as input data a homological model for a finite group G of order |G| = ...

Let Λ be a commutative ring, A an augmented differential graded algebra over Λ (briefly, DGA-algebra) and X be a relatively ...

An n by n skew-symmetric type (−1, 1)-matrix K = [ki,j ] has 1’s on the main diagonal and ±1’s elsewhere with ki,j = ...