Search Results - "Rubio Y Degrassi, Lleonard"
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On the Lie algebra structure of integrable derivations
Published in The Bulletin of the London Mathematical Society (01-12-2023)“…Abstract Building on work of Gerstenhaber, we show that the space of integrable derivations on an Artin algebra forms a Lie algebra, and a restricted Lie…”
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The first Hochschild cohomology as a Lie algebra
Published in Quaestiones mathematicae (02-09-2023)“…In this paper we study sufficient conditions for the solvability of the first Hochschild cohomology of a finite dimensional algebra as a Lie algebra in terms…”
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3
Stable invariance of the restricted Lie algebra structure of Hochschild cohomology
Published in Pacific journal of mathematics (2022)“…We show that the restricted Lie algebra structure on Hochschild cohomology is invariant under stable equivalences of Morita type between self-injective…”
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4
The Hochschild cohomology groups under gluing arrows
Published in Communications in algebra (01-09-2024)“…In a previous paper we have compared the Hochschild cohomology groups of finite dimensional monomial algebras under gluing two idempotents. In the present…”
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5
Block algebras with HH1 a simple Lie algebra
Published in Quarterly journal of mathematics (01-12-2018)Get full text
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Invariance of the restricted p-power map on integrable derivations under stable equivalences
Published in Journal of algebra (01-01-2017)“…We show that the p-power maps in the first Hochschild cohomology space of finite-dimensional selfinjective algebras over a field of prime characteristic p…”
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7
Stable invariance of the restricted Lie algebra structure of Hochschild cohomology
Published 15-09-2021“…Pacific J. Math. 321 (2022) 45-71 We show that the restricted Lie algebra structure on Hochschild cohomology is invariant under stable equivalences of Morita…”
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8
Maximal Tori in HH 1 and the Fundamental Group
Published in International mathematics research notices (23-03-2023)“…Abstract We investigate maximal tori in the Hochschild cohomology Lie algebra ${\operatorname {HH}}^1(A)$ of a finite dimensional algebra $A$, and their…”
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9
On the first relative Hochschild cohomology and contracted fundamental group
Published 05-11-2024“…In this paper we investigate the Lie algebra structure of the first relative Hochschild cohomology and its relation with the relative notion of fundamental…”
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10
On the Lie algebra structure of integrable derivations
Published 03-05-2022“…Building on work of Gerstenhaber, we show that the space of integrable derivations on an Artin algebra $A$ forms a Lie algebra, and a restricted Lie algebra if…”
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11
The Hochschild cohomology groups under gluing arrows
Published 16-07-2023“…In a previous paper arXiv:2211.05435 we have compared the Hochschild cohomology groups of finite dimensional monomial algebras under gluing two idempotents. In…”
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12
Maximal tori in $HH^1$ and the fundamental group
Published 08-09-2021“…We investigate maximal tori in the Hochschild cohomology Lie algebra $HH^1(A)$ of a finite dimensional algebra $A$, and their connection with the fundamental…”
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13
The Hochschild cohomology groups under gluing idempotents
Published 10-11-2022“…We compare the first Hochschild cohomology groups of finite dimensional monomial algebras under gluing two idempotents. We also compare the fundamental groups…”
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14
On the Lie algebra structure of $HH^1(A)$ of a finite-dimensional algebra $A
Published 20-03-2019“…Let $A$ be a split finite-dimensional associative unital algebra over a field. The first main result of this note shows that if the Ext-quiver of $A$ is a…”
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15
Invariance of the restricted $p$-power map on integrable derivations under stable equivalences
Published 14-09-2015“…We show that the $p$-power maps in the first Hochschild cohomology space of finite-dimensional selfinjective algebras over a field of prime characteristic $p$…”
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16
The first Hochschild cohomology as a Lie algebra
Published 28-03-2019“…In this paper we study sufficient conditions for the solvability of the first Hochschild cohomology of a finite dimensional algebra as a Lie algebra in terms…”
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17
Block algebras with HH1 a simple Lie algebra
Published 25-11-2016“…We show that if $B$ is a block of a finite group algebra $kG$ over an algebraically closed field $k$ of prime characteristic $p$ such that $\HH^1(B)$ is a…”
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