Exploració per tema "Homologia"
Ara es mostren els items 1-8 de 8
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A note on Bernstein–Sato ideals
(2022-10-31)
Article
Accés obertWe define the Bernstein–Sato ideal associated to a tuple of ideals and we relate it to the jumping points of the corresponding mixed multiplier ideals. -
An A(infinity)Operad in Spineless Cacti
(2015-11-01)
Article
Accés obertThe dg operad of cellular chains on the operad of spineless cacti of Kaufmann (Topology 46(1):39-88, 2007) is isomorphic to the Gerstenhaber-Voronov dg operad codifying the cup product and brace operations on the Hochschild ... -
An A-infinity operad in spineless cacti
(2015-04-17)
Report de recerca
Accés obertThe d.g. operad C of cellular chains on the operad of spineless cacti is isomorphic to the Gerstenhaber-Voronov operad codifying the cup product and brace operations on the Hochschild cochains of an associative algebra, ... -
André spectral sequences for Baues-Wirsching cohomology of categories
(2011-12-16)
Altres
Accés obertWe construct spectral sequences in the framework of Baues-Wirsching cohomology and homology for functors between small categories and analyze particular cases including Grothendieck fibrations. We also give applications ... -
Local cohomology of binomial edge ideals and their generic ideals
(2019)
Report de recerca
Accés obertWe provide a Hochster type formula for the local cohomology modules of binomial edge ideals. As a consequence we obtain a simple criterion for the Cohen-Macaulayness of these ideals and we describe their Castelnuovo-Mumford ... -
Local cohomology of binomial edge ideals and their generic initial ideals
(2019-01-01)
Article
Accés obertWe provide a Hochster type formula for the local cohomology modules of binomial edge ideals. As a consequence we obtain a simple criterion for the Cohen–Macaulayness and Buchsbaumness of these ideals and we describe their ... -
The 2-group of symmetries of a split chain complex
(2010-12-15)
Report de recerca
Accés obertWe explicitly compute the 2-group of self-equivalences and (homotopy classes of) chain homotopies between them for any {\it split} chain complex $A_{\bullet}$ in an arbitrary $\kb$-linear abelian category ($\kb$ any ... -
Thomason cohomology of categories
(2013)
Article
Accés obertWe investigate cohomology and homology theories of categories with general coefficients given by functors on simplex categories first studied by Thomason. These generalize Baues–Wirsching cohomology and homology of a small ...