Results 41 to 50 of about 4,505 (170)

Transfers for ramified covering maps in homology and cohomology

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2006
Making use of a modified version, due to McCord, of the Dold-Thom construction of ordinary homology, we give a simple topological definition of a transfer for ramified covering maps in homology with arbitrary coefficients.
Marcelo A. Aguilar, Carlos Prieto
doaj   +1 more source

Representations and cohomologies of modified λ-differential Hom-Lie algebras

open access: yesAIMS Mathematics
In this paper, we introduce the concept and representations of modified $ \lambda $-differential Hom-Lie algebras. We then develop the cohomology of modified $ \lambda $-differential Hom-Lie algebras with coefficients in a suitable representation.
Yunpeng Xiao , Wen Teng
doaj   +1 more source

Computational Tools for Cohomology of Toric Varieties

open access: yesAdvances in High Energy Physics, 2011
Novel nonstandard techniques for the computation of cohomology classes on toric varieties are summarized. After an introduction of the basic definitions and properties of toric geometry, we discuss a specific computational algorithm for the determination
Ralph Blumenhagen   +2 more
doaj   +1 more source

One-dimensional super Calabi-Yau manifolds and their mirrors

open access: yesJournal of High Energy Physics, 2017
We apply a definition of generalised super Calabi-Yau variety (SCY) to supermanifolds of complex dimension one. One of our results is that there are two SCY’s having reduced manifold equal to ℙ 1 $$ {\mathrm{\mathbb{P}}}^1 $$ , namely the projective ...
S. Noja   +4 more
doaj   +1 more source

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