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We introduce a canonical isomorphism from the space of pure-type complex differential forms on a compact complex manifold to the one on its infinitesimal deformations. By use of this map, we generalize an extension formula in a recent work…

Complex Variables · Mathematics 2019-09-30 Sheng Rao , Quanting Zhao

The 2-matrix model has been introduced to study Ising model on random surfaces. Since then, the link between matrix models and combinatorics of discrete surfaces has strongly tightened. This manuscript aims to investigate these deep links…

High Energy Physics - Theory · Physics 2007-09-20 N. Orantin

We study the behaviour of automorphic L-Invariants associated to cuspidal representations of GL(2) of cohomological weight 0 under abelian base change and Jacquet-Langlands lifts to totally definite quaternion algebras. Under a standard…

Number Theory · Mathematics 2021-05-31 Lennart Gehrmann

We determine the graded decompositions of fusion products of finite-dimensional irreducible representations for simple Lie algebras of rank two. Moreover, we give generators and relations for these representations and obtain as a…

Representation Theory · Mathematics 2023-02-22 Leon Barth , Deniz Kus

In this paper we study the asymptotic behaviour of the equivariant holomorphic analytic torsion forms associated with increasing powers of a fibrewise positive line bundle. The result is an equivariant extension of a result of Puchol.

Differential Geometry · Mathematics 2024-08-23 Pascal Tessmer

We give some remarks on twisted determinant line bundles and Chern-Simons topological invariants associated with real hyperbolic manifolds. Index of a twisted Dirac operator is derived. We discuss briefly application of obtained results in…

High Energy Physics - Theory · Physics 2009-11-07 A. A. Bytsenko , M. C. Falleiros , A. E. Goncalves , Z. G. Kuznetsova

We compute the cohomology of modules over the algebra of twisted chiral differential operators over the flag manifold. This is applied to (1) finding the character of $G$-integrable irreducible highest weight modules over the affine Lie…

Algebraic Geometry · Mathematics 2011-12-13 T. Arakawa , F. Malikov

For a particular class of pseudo manifolds, we show that the intersection cohomology groups for any perversity may be naturally represented by extended weighted $L^2$ harmonic forms for a complete metric on the regular stratum with respect…

Geometric Topology · Mathematics 2017-01-12 E. Hunsicker

We investigate several categories related to transition structures, using a mixture of algebraic and topological methods. We show how two such categories are connected by a contravariant adjunction. This is the most detailed of a family of…

Category Theory · Mathematics 2026-04-16 Matthew Collinson

We prove the invariance of plurigenera under smooth projective deformations in full generality. The proof is done by several estimates of singular hermitian metrics in terms of $L^{2}$-extension theorem of holomorphic sections.

Algebraic Geometry · Mathematics 2007-05-23 Hajime Tsuji

We give formulas for the extension groups between tautological sheaves and more general between tautological objects twisted by a determinant line bundle on the Hilbert scheme of points on a smooth quasi-projective surface. We do this using…

Algebraic Geometry · Mathematics 2012-06-22 Andreas Krug

This paper aims to use topological methods to compute $\mathrm{Ext}$ between an irreducible representation of a finite monoid inflated from its group completion and one inflated from its group of units, or more generally coinduced from a…

Representation Theory · Mathematics 2024-04-03 Benjamin Steinberg

Cumulants represent a natural language for expressing macroscopic properties of a solid. We show that cumulants are subject to a nontrivial geometry. This geometry provides an intuitive understanding of a number of cumulant relations which…

Condensed Matter · Physics 2007-05-23 K. Kladko , P. Fulde

We study quotients of multi-graded bundles, including double vector bundles. Among other things, we show that any such quotient fits into a tower of affine bundles. Applications of the theory include a construction of normal bundles for…

Differential Geometry · Mathematics 2024-11-28 Eckhard Meinrenken

We develop a theory of extensions of hyperfields that generalizes the notion of field extensions. Since hyperfields have a multivalued addition, we must consider two kinds of extensions that we call weak hyperfield extensions and strong…

Rings and Algebras · Mathematics 2019-12-13 Steven Creech

The purpose of this article has two fold. The first is to generalize some recent second main theorems for the mappings and moving hyperplanes of $\P^n(\C)$ to the case where the counting functions are truncated multiplicity (by level $n$)…

Complex Variables · Mathematics 2019-02-13 Duc Thoan Pham , Hai Nam Nguyen , Van An Nguyen

It is expected that a totally invariant divisor of a non-isomorphic endomorphism of the complex projective space is a union of hyperplanes. In this paper, we compute an upper bound for the degree of such a divisor. As a consequence, we…

Algebraic Geometry · Mathematics 2021-11-30 Mabed Yanis

For a projective variety $X$ defined over a non-Archimedean complete non-trivially valued field $k$, and a semipositive metrized line bundle $(L, \phi)$ over it, we establish a metric extension result for sections of $L^{\otimes n}$ from a…

Algebraic Geometry · Mathematics 2019-04-09 Yanbo Fang

We study the weighted ray transform of integrating functions on a Lorentzian manifold over lightlike geodesics. We prove support theorems if the manifold and the weight are analytic.

Differential Geometry · Mathematics 2015-10-20 Plamen Stefanov

K-theoretic Donaldson invariants are holomorphic Euler characteristics of determinant line bundles on moduli spaces of sheaves on surfaces. We compute generating functions of K-theoretic Donaldson invariants on the projective plane and…

Algebraic Geometry · Mathematics 2015-12-22 Lothar Göttsche , Yao Yuan