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Related papers: A proof of a conjecture of Shklyarov

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We describe an explicit formula of the canonical pairing on the twisted de Rham cohomology associated with the category of local matrix factorizations and by characterizing its relation to Saito's higher residue pairings, we reprove the…

Algebraic Geometry · Mathematics 2024-04-01 Hoil Kim , Taejung Kim

We establish a Hirzebruch-Riemann-Roch type theorem and Grothendieck-Riemann-Roch type theorem for matrix factorizations on quotient Deligne-Mumford stacks. For this we first construct a Hochschild-Kostant-Rosenberg type isomorphism…

Algebraic Geometry · Mathematics 2022-02-10 Dongwook Choa , Bumsig Kim , Bhamidi Sreedhar

We prove a Hirzebruch-Riemann-Roch type formula for global matrix factorizations. This is established by an explicit realization of the abstract Hirzebruch-Riemann-Roch type formula of Shklarov. We also show a Grothendieck-Riemann-Roch type…

Algebraic Geometry · Mathematics 2021-06-02 Bumsig Kim

The periodic cyclic homology of any proper dg category comes equipped with a canonical pairing. We show that in the case of the dg category of matrix factorizations of an isolated singularity the canonical pairing can be identified with the…

Algebraic Geometry · Mathematics 2014-03-03 Dmytro Shklyarov

We formulate a realization of the canonical pairing in the negative cyclic homology of the category of local matrix factorizations and for global matrix factorizations, by introducing a twisted de Rham valued Todd class we establish a…

Algebraic Geometry · Mathematics 2023-04-25 Hoil Kim , Taejung Kim

Using factorization homology techniques, we give a simple proof of the action of Kontsevich and Soibelman operad on the pair consisting of Hochschild cohomology and Hochschild homology. The proof obviously extends to higher Hochschild…

Algebraic Topology · Mathematics 2015-02-02 Geoffroy Horel

The first author conjectured certain relations for Morita-Mumford classes and Newton classes in the integral cohomology of mapping class groups (integral Riemann-Roch formulae). In this paper, the conjecture is verified for cyclic subgroups…

Geometric Topology · Mathematics 2007-05-23 Toshiyuki Akita , Nariya Kawazumi

We prove the statement in the title, solving in this way a conjecture stated by Ginot for manifolds with corners. Along the way, we establish a derived Swiss-cheese additivity theorem and an alternative proof for the hyperdescent of…

Algebraic Topology · Mathematics 2025-10-31 Victor Carmona , Anja Švraka

We prove a Kn"orrer periodicity type equivalence between derived factorization categories of gauged LG models, which is an analogy of a theorem proved by Shipman and Isik independently. As an application, we obtain a gauged LG version of…

Algebraic Geometry · Mathematics 2019-02-20 Yuki Hirano

Previously we gave a conjectural cohomological argument for the validity of the Riemann hypotheses for Hasse-Weil zeta functions. In the present note we sketch how the same cohomological formalism would imply the conjectured positivity…

Number Theory · Mathematics 2010-01-12 C. Deninger

We consider the factorization problem in toy models of holography, in SYK and in Matrix Models. In a theory with fixed couplings, we introduce a fictitious ensemble averaging by inserting a projector onto fixed couplings. We compute the…

High Energy Physics - Theory · Physics 2023-03-28 Baur Mukhametzhanov

We observe that there is an equivalence between the singularity category of an affine complete intersection and the homotopy category of matrix factorizations over a related scheme. This relies in part on a theorem of Orlov. Using this…

Commutative Algebra · Mathematics 2012-05-14 Jesse Burke , Mark E. Walker

Buchweitz-Greuel-Schreyer conjectured in 1987 a lower bound on the ranks of matrix factorizations over certain local hypersurface rings. We study a graded version of this conjecture, and we show that it implies a novel conjecture concerning…

Algebraic Geometry · Mathematics 2025-08-19 Michael K. Brown , Mark E. Walker

We prove a conjecture of H.Widom stated in [W] (math/0108008) about the reality of eigenvalues of certain infinite matrices arising in asymptotic analysis of large Toeplitz determinants. As a byproduct we obtain a new proof of A.Okounkov's…

Combinatorics · Mathematics 2009-11-11 Alexei Borodin , Alexei Novikov

Using the method of multiple Dirichlet series, we develop L-functions ratios conjecture with one shift in both the numerator and denominator in certain ranges for quadratic families of Dirichlet and Hecke L-functions of primerelated moduli…

Number Theory · Mathematics 2024-04-11 Peng Gao , Liangyi Zhao

We provide a new perspective on the Kapustin-Li formula for the duality pairing on the morphism complexes in the matrix factorization category of an isolated hypersurface singularity. In our context, the formula arises as an explicit…

Algebraic Geometry · Mathematics 2021-06-01 Tobias Dyckerhoff , Daniel Murfet

We prove a multiplicity formula for Riemann-Roch numbers of reductions of Hamiltonian actions of loop groups. This includes as a special case the factorization formula for the quantum dimension of the moduli space of flat connections over a…

dg-ga · Mathematics 2008-02-03 Eckhard Meinrenken , Chris Woodward

We use algebraic methods in statistical mechanics to represent a multi-parameter class of polynomials in several variables as partition functions of a new family of solvable lattice models. The class of polynomials, defined by A. N.…

Combinatorics · Mathematics 2026-05-22 Ben Brubaker , A. Suki Dasher , Michael Hu , Nupur Jain , Yifan Li , Yi Lin , Maria Mihaila , Van Tran , I. Deniz Ünel

The problem of factorization and parametrization of compactly supported biorthogonal wavelets was reduced to that of pseudoidentity matrix pairs by Resnikoff, Tian, and Wells in their 2001 paper. Based on a conjecture on the pseudoidentity…

Functional Analysis · Mathematics 2011-01-21 Florian M. Sebert , Yi Ming Zou

Given an isolated, quasi-homogeneous singularity $X$ we prove that there is a group isomorphism between the group of rank one reflexive sheaves on $X$ and the free abelian group generated by $\mathbb{C}^*$-divisors, modulo linear…

Algebraic Geometry · Mathematics 2023-01-13 Ananyo Dan , Agustín Romano-Velázquez
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