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A new class of structured matrices is presented and a closed form formula for their determinant is established. This formula has strong connections with the one for Vandermonde matrices.

Combinatorics · Mathematics 2019-10-31 Augusto Ferrante , Fabrizio Padula , Lorenzo Ntogramatzidis

In this work we construct an eigencurve for p-adic modular forms attached to an indefinite quaternion algebra over Q. Our theory includes the definition, both as rules on test objects and sections of line bundle, of p-adic modular forms,…

Number Theory · Mathematics 2012-06-26 Riccardo Brasca

We show that the height of a toric variety with respect to a toric metrized line bundle can be expressed as the integral over a polytope of a certain adelic family of concave functions. To state and prove this result, we study the Arakelov…

Algebraic Geometry · Mathematics 2015-03-19 José Ignacio Burgos Gil , Patrice Philippon , Martín Sombra

We conjecture the equality of the numerical and Kodaira dimensions $\nu_1^*(X)$ and $\kappa_1^*(X)$ for the cotangent bundle of compact K\"ahler manifolds $X$, generalising the classical case of the canonical bundle. We show or reduce it to…

Algebraic Geometry · Mathematics 2023-03-07 Frederic Bruno Campana

We give an explicit formula of the normalized Mumford form which expresses the second tautological line bundle by the Hodge line bundle defined on the moduli space of algebraic curves of any genus. This formula is represented by an infinite…

Mathematical Physics · Physics 2018-12-21 Takashi Ichikawa

Given a real cubic form f(x,y,z), there is a pseudo-Riemannian metric given by its Hessian matrix, defined on the open subset of R^3 where the Hessian determinant h is non-zero. We determine the full curvature tensor of this metric in terms…

Algebraic Geometry · Mathematics 2007-05-23 P. M. H. Wilson

This paper achieves, among other things, the following: 1)It frees the main result of [BFKM] from the hypothesis of determinant class and extends this result from unitary to arbitrary representations. 2)It extends (and at the same times…

Differential Geometry · Mathematics 2007-05-23 D. Burghelea , Leonid Friedlander , T. Kappeler

In this paper we discuss curvature tensors in the context of Absolute Parallelism geometry. Different curvature tensors are expressed in a compact form in terms of the torsion tensor of the canonical connection. Using the Bianchi identities…

General Relativity and Quantum Cosmology · Physics 2008-11-26 Nabil L. Youssef , Amr M. Sid-Ahmed

A section K on a genus g canonical curve C is identified as the key tool to prove new results on the geometry of the singular locus Theta_s of the theta divisor. The K divisor is characterized by the condition of linear dependence of a set…

Algebraic Geometry · Mathematics 2007-10-12 Marco Matone , Roberto Volpato

We introduce the notion of hyperbolic equivalence for quadric bundles and quadratic forms on vector bundles and show that hyperbolic equivalent quadric bundles share many important properties: they have the same Brauer data; moreover, if…

Algebraic Geometry · Mathematics 2024-05-22 Alexander Kuznetsov

In this paper, we introduce the tensor similar transforation and propose the T-Jordan canonical form and its properties. The concept of T-minimal polynomial and T-characteristic polynomial are raised. As a special case, we present…

Numerical Analysis · Mathematics 2019-10-24 Yun Miao , Liqun Qi , Yimin Wei

We introduce some basic notions and results for quaternionic linear operators analogous to those for complex linear operators. Our main result is to prove the additive and multiplicative Jordan-Chevalley decompositions for quaternionic…

Rings and Algebras · Mathematics 2019-06-06 Han Gang , Yu Jing , Sun Zheyu

We obtain a family of explicit "polyhedral" combinatorial expressions for multiplicities in the tensor product of two simple finite-dimensional modules over a complex semisimple Lie algebra. Here "polyhedral" means that the multiplicity in…

Representation Theory · Mathematics 2007-05-23 Arkady Berenstein , Andrei Zelevinsky

For a closed Riemannian manifold we extend the definition of analytic and Reidemeister torsion associated to an orthogonal representation of fundamental group on a Hilbert module of finite type over a finite von Neumann algebra. If the…

dg-ga · Mathematics 2008-02-03 D. Burghelea , L. Friedlander , T. Kappeler , P. McDonald

An important problem is to determine under which circumstances a metric on a conformally compact manifold is conformal to a Poincar\'e--Einstein metric. Such conformal rescalings are in general obstructed by conformal invariants of the…

Differential Geometry · Mathematics 2021-07-23 Samuel Blitz , A. Rod Gover , Andrew Waldron

We define formal exponential maps for any graded manifold as maps from the formal tangent bundle (that we also define) into the graded manifold. We show that each such map uniquely determines and is determined by its associated Grothendieck…

Mathematical Physics · Physics 2022-04-28 Alex S. Arvanitakis

We classify singular fibres of a projective Lagrangian fibration over codimension one points. As an application, we obtain a canonical bundle formula for a projective Lagrangian fibration over a smooth manifold.

Algebraic Geometry · Mathematics 2016-11-28 Daisuke Matsushita

Beilinson gave a resolution of the diagonal for complex projective spaces, which Bayer-Popescu-Sturmfels generalized to what they refer to as unimodular projective toric varieties. The unimodular condition in Bayer-Popescu-Sturmfels'…

Algebraic Geometry · Mathematics 2025-02-25 Reginald Anderson

This paper aims to study the asymptotic expansion of analytic torsion forms associated with a certain series of flat bundles. We prove the existence of the full expansion and give a formula for the sub-leading term, while Bismut-Ma-Zhang…

Differential Geometry · Mathematics 2023-01-11 Qiaochu Ma

We provide a simple and new induction based treatment of the problem of distinguishing cusp forms from the growth of the Fourier coefficients of modular forms. Our approach gives the best possible ranges of the weights for this problem, and…

Number Theory · Mathematics 2026-03-24 Soumya Das
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