Jos'e A. V'elez-Marulanda

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20242026

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math.RT2026

On universal deformation rings and stable equivalences of Gorenstein-projective modules

Shengyong Pan, Jose A. Velez-Marulanda

Let $k$ be a field and let $Λ$ and $Γ$ finite dimensional $k$ -algebras. Assume that $_{Γ} X_{Λ}$ and $_{Λ} Y_{Γ}$ are bimodules that define a singular equivalence of Mo…

math.RT2025

Universal deformation rings of a special class of modules over generalized Brauer tree algebras

Jhony F. Caranguay-Mainguez, Pedro Rizzo, José A. Vélez-Marulanda

Let $k$ be an algebraically closed field and $Λ$ a generalized Brauer tree algebra over $k$ . We compute the universal deformation rings of the periodic string modules over…