Results 11 to 20 of about 45,702 (171)
Intersection cohomology of Drinfeld‚s compactifications [PDF]
Selecta Mathematica, 2002 An erratum ...
Braverman, A +3 more
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The hypertoric intersection cohomology ring [PDF]
Inventiones mathematicae, 2008 We present a functorial computation of the equivariant intersection cohomology of a hypertoric variety, and endow it with a natural ring structure. When the hyperplane arrangement associated with the hypertoric variety is unimodular, we show that this ...
A. Björner +32 more
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Intersection numbers, polynomial division and relative cohomology [PDF]
Journal of High Energy PhysicsWe present a simplification of the recursive algorithm for the evaluation of intersection numbers for differential n-forms, by combining the advantages emerging from the choice of delta-forms as generators of relative twisted cohomology groups and the ...
Giacomo Brunello +5 more
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Equivariant intersection cohomology of the circle actions
Revista De La Real Academia De Ciencias Exactas, Fisicas Y Naturales - Serie A: Matematicas, 2012 In this paper, we prove that the orbit space B and the Euler class of an action of the circle S^1 on X determine both the equivariant intersection cohomology of the pseudomanifold X and its localization.
G Hector +7 more
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Vanishing of odd dimensional intersection cohomology II [PDF]
Mathematische Annalen, 2001 Let \(X\) be an equidimensional variety (not necessarily irreducible) over an algebraically closed field (of any characteristic), and suppose that an algebraic group \(G\) acts on \(X\). In this article the authors study certain conditions for which the odd dimensional intersection cohomology of \(X\) vanishes.
Brion, Michel, Joshua, Roy
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Co-Homology of Differential Forms and Feynman Diagrams
Universe, 2021 In the present review we provide an extensive analysis of the intertwinement between Feynman integrals and cohomology theories in light of recent developments.
Sergio Luigi Cacciatori +2 more
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On cohomologically complete intersection modules [PDF]
Hiroshima Mathematical Journal, 2021 Let \(I\) denote an ideal of a local ring \((R,\mathfrak{m})\). A finitely generated \(R\)-module \(M\) is called cohomologically complete intersection with respect to \(I\) if \(H^i_I(M)\) vanishes for all \(i \not= \operatorname{grade} (I,M)\), where \(H^i_I(M)\) denotes the \(i\)-th local cohomology module of \(M\) with respect to \(I\). This is the
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Duals of Feynman integrals. Part I. Differential equations
Journal of High Energy Physics, 2021 We elucidate the vector space (twisted relative cohomology) that is Poincaré dual to the vector space of Feynman integrals (twisted cohomology) in general spacetime dimension.
Simon Caron-Huot, Andrzej Pokraka
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Combinatorial intersection cohomology for fans [PDF]
Tohoku Mathematical Journal, 2002 41 pages, Plain TeX ("private" macros included), submitted for ...
Barthel, Gottfried +3 more
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A Murgnahan-Nakayama rule for Schubert polynomials [PDF]
Discrete Mathematics & Theoretical Computer Science, 2014 We expose a rule for multiplying a general Schubert polynomial with a power sum polynomial in $k$ variables. A signed sum over cyclic permutations replaces the signed sum over rim hooks in the classical Murgnahan-Nakayama rule. In the intersection theory
Andrew Morrison
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