De Rham cohomology
Clases características de haces de superficies
... The above method of defining the Gysin homomorphism using the spectral sequence is valid over Z, and we may say that it is theoretically the best one. However, it might not be easy to see its geometrical meaning. To ...
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Hecke operators on cohomology
... of cohomology groups. The class of cohomology on which Hecke opera- tors are introduced includes the group cohomology of discrete subgroups of a semisimple Lie group, the de Rham ...
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El teorema de De Rham y aplicaciones
... De Rham Theorem establishes an isomorphism between De Rham cohomology groups and groups of singular coho mo lo gy of a differentiable manifold ...De Rham cohomology of a differentiable ...
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On the cohomology ring of flat manifolds with a special structure
... As a second interesting class we study the hyperk¨ ahler manifolds obtained by doubling (twice) a Hantzsche-Wendt type manifold (see [MR]). This gives, for any m ≥ 3, a 4n-dimensional compact flat hyperk¨ ahler manifold ...
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Top local cohomology modules over local rings and the weak going up property
... The Lichtenbaum–Hartshorne Vanishing Theorem [3, Theorem 8.2.1] gives nec- essary and sufficient conditions for the vanishing of certain top local cohomology modules by means of some conditions on the completion ...
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$T^*$ extensions and abelian extensions of hom Lie color algebras
... the cohomology and the representation, show that every finite- dimensional nilpotent quadratic Lie color algebra L over an algebraically closed field of characteristic not 2 is isometric to a T ∗ -extension of a ...
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On Hilbert schemes and Chen Ruan cohomology
... Chen-Ruan cohomology and the quantum corrections of Ruan for the cohomology of Hilbert schemes in the particular case of the two-fold symmetric product of C P 2 , which corresponds to the invariant part by ...
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Vanishing, Bass numbers, and cominimaxness of local cohomology modules
... to be I-cofinite if Supp M ⊆ V (I) and Ext j R (R/I, M ) is finitely generated for all j. In this paper we prove the following about the vanishing of local cohomology modules. Let (R, m) be a regular local ring of ...
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Sobre la cohomología de De Rham
... De Rham, se hará un estudio riguroso sobre aplica- ciones lineales con propiedades particulares, y se definirá un producto exterior que permitirá construir las p-formas diferenciales, que serán los objetos sobre ...
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