M. A. Gatica

activity

20112017

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Showing 2015Show all

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math.RA2015

Idempotent ideals and the Igusa-Todorov functions

Andrea Gatica, Marcelo Lanzilotta, María Inés Platzeck

Let $Λ$ be an artin algebra and $A$ a two-sided idempotent ideal of $Λ$ , that is, $A$ is the trace of a projective $Λ$ -module $P$ in $Λ$ . We consider the cate…

math.RT2015

Hochschild cohomology of relation extension algebras

Ibrahim Assem, M. Andrea Gatica, Ralf Schiffler +1

Let $B$ be the split extension of a finite dimensional algebra $C$ by a $C$ - $C$ -bimodule $E$ . We define a morphism of associative graded algebras $φ^*:\HH^*(B)\rightarrow \HH^*(C)$…