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Dag Oskar Madsen
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This is true whenever condition (Fg) from the theory of support varieties holds.

A finite dimensional algebra $A$ with Jacobson radical $J$ is said to satisfy condition (Fg) if the Hochschild cohomology ring ${\rm{HH}}^{\ast}(A)$ of $A$ is Noetherian and ${\rm{Ext}}^{\ast}_A(A/J,A/J)$ is finitely generated as an ${\rm{HH}}^{\ast}(A)$-module. The ring ${\rm{HH}}^{\ast}(A)$ acts on ${\rm{Ext}}^{\ast}_A(M,N)$ through the graded center of ${\rm{Ext}}^{\ast}_A(M,M)$ as explained in section 3 of [Solberg, Support varieties for modules and complexes]. Condition (Fg) implies that ${\rm{Ext}}^{\ast}_A(M,N)$ is finitely generated as an ${\rm{HH}}^{\ast}(A)$-module [Proposition[Propositions 5.5 and 5.7 of that paper]. This in turn implies that ${\rm{Ext}}^{\ast}_A (M,N)$ is finitely generated as an ${\rm{Ext}}^{\ast}_A(M,M)$-module.

See the introduction to arXiv:1003.2867 for classes of algebras that satisfy condition (Fg). In particular (Fg) holds when $A$ is a representation finite self-injective algebra over an algebraically closed field.

This is true whenever condition (Fg) from the theory of support varieties holds.

A finite dimensional algebra $A$ with Jacobson radical $J$ is said to satisfy condition (Fg) if the Hochschild cohomology ring ${\rm{HH}}^{\ast}(A)$ of $A$ is Noetherian and ${\rm{Ext}}^{\ast}_A(A/J,A/J)$ is finitely generated as an ${\rm{HH}}^{\ast}(A)$-module. The ring ${\rm{HH}}^{\ast}(A)$ acts on ${\rm{Ext}}^{\ast}_A(M,N)$ through the graded center of ${\rm{Ext}}^{\ast}_A(M,M)$ as explained in section 3 of [Solberg, Support varieties for modules and complexes]. Condition (Fg) implies that ${\rm{Ext}}^{\ast}_A(M,N)$ is finitely generated as an ${\rm{HH}}^{\ast}(A)$-module [Proposition 5.5 of that paper]. This in turn implies that ${\rm{Ext}}^{\ast}_A (M,N)$ is finitely generated as an ${\rm{Ext}}^{\ast}_A(M,M)$-module.

See the introduction to arXiv:1003.2867 for classes of algebras that satisfy condition (Fg). In particular (Fg) holds when $A$ is a representation finite self-injective algebra over an algebraically closed field.

This is true whenever condition (Fg) from the theory of support varieties holds.

A finite dimensional algebra $A$ with Jacobson radical $J$ is said to satisfy condition (Fg) if the Hochschild cohomology ring ${\rm{HH}}^{\ast}(A)$ of $A$ is Noetherian and ${\rm{Ext}}^{\ast}_A(A/J,A/J)$ is finitely generated as an ${\rm{HH}}^{\ast}(A)$-module. The ring ${\rm{HH}}^{\ast}(A)$ acts on ${\rm{Ext}}^{\ast}_A(M,N)$ through the graded center of ${\rm{Ext}}^{\ast}_A(M,M)$ as explained in section 3 of [Solberg, Support varieties for modules and complexes]. Condition (Fg) implies that ${\rm{Ext}}^{\ast}_A(M,N)$ is finitely generated as an ${\rm{HH}}^{\ast}(A)$-module [Propositions 5.5 and 5.7 of that paper]. This in turn implies that ${\rm{Ext}}^{\ast}_A (M,N)$ is finitely generated as an ${\rm{Ext}}^{\ast}_A(M,M)$-module.

See the introduction to arXiv:1003.2867 for classes of algebras that satisfy condition (Fg). In particular (Fg) holds when $A$ is a representation finite self-injective algebra over an algebraically closed field.

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Dag Oskar Madsen
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This is true whenever condition (FgFg) from the theory of support varieties holds.

A finite dimensional algebra $A$ with Jacobson radical $J$ is said to satisfy condition (Fg) if the Hochschild cohomology ring ${\rm{HH}}^{\ast}(A)$ of $A$ is Noetherian and ${\rm{Ext}}^{\ast}_A(A/J,A/J)$ is finitely generated as an ${\rm{HH}}^{\ast}(A)$-module. The ring ${\rm{HH}}^{\ast}(A)$ acts on ${\rm{Ext}}^{\ast}_A(M,N)$ through the graded center of ${\rm{Ext}}^{\ast}_A(M,M)$ as explained in section 3 of [Solberg, Support varieties for modules and complexes]. Condition (Fg) implies that ${\rm{Ext}}^{\ast}_A(M,N)$ is finitely generated as an ${\rm{HH}}^{\ast}(A)$-module [Proposition 5.5 of that paper]. This in turn implies that ${\rm{Ext}}^{\ast}_A (M,N)$ is finitely generated as an ${\rm{Ext}}^{\ast}_A(M,M)$-module.

See the introduction ofto arXiv:1003.2867 for classes of algebras that satisfy condition (FgFg). In particular (Fg) holds when $A$ is a representation finite self-injective algebra over an algebraically closed field.

This is true whenever condition (Fg) from the theory of support varieties holds. See the introduction of arXiv:1003.2867 for classes of algebras that satisfy condition (Fg).

This is true whenever condition (Fg) from the theory of support varieties holds.

A finite dimensional algebra $A$ with Jacobson radical $J$ is said to satisfy condition (Fg) if the Hochschild cohomology ring ${\rm{HH}}^{\ast}(A)$ of $A$ is Noetherian and ${\rm{Ext}}^{\ast}_A(A/J,A/J)$ is finitely generated as an ${\rm{HH}}^{\ast}(A)$-module. The ring ${\rm{HH}}^{\ast}(A)$ acts on ${\rm{Ext}}^{\ast}_A(M,N)$ through the graded center of ${\rm{Ext}}^{\ast}_A(M,M)$ as explained in section 3 of [Solberg, Support varieties for modules and complexes]. Condition (Fg) implies that ${\rm{Ext}}^{\ast}_A(M,N)$ is finitely generated as an ${\rm{HH}}^{\ast}(A)$-module [Proposition 5.5 of that paper]. This in turn implies that ${\rm{Ext}}^{\ast}_A (M,N)$ is finitely generated as an ${\rm{Ext}}^{\ast}_A(M,M)$-module.

See the introduction to arXiv:1003.2867 for classes of algebras that satisfy condition (Fg). In particular (Fg) holds when $A$ is a representation finite self-injective algebra over an algebraically closed field.

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Dag Oskar Madsen
  • 3.7k
  • 3
  • 28
  • 51

This is true whenever condition (Fg) from the theory of support varieties holds. See the introduction of arXiv:1003.2867 for classes of algebras that satisfy condition (Fg).