INVESTIGADORES
ROSSI BERTONE Fiorela
artículos
Título:
The Ext-algebra for infinitesimal deformations
Autor/es:
REDONDO, MARÍA JULIA; ROMAN, LUCRECIA; ROSSI BERTONE, FIORELA
Revista:
JOURNAL OF PURE AND APPLIED ALGEBRA
Editorial:
ELSEVIER SCIENCE BV
Referencias:
Lugar: Amsterdam; Año: 2024
ISSN:
0022-4049
Resumen:
Let f be a Hochschild 2-cocycle and let Af be an infinitesimal deformation of an associative finite dimensional algebra A over an algebraically closed field k. We investigate the algebra structure of the Ext-algebra of Af and, under some conditions on f, we describe it in terms of the Ext-algebra of A. We achieve this description by getting an explicit construction of minimal projective resolutions in modAf.
