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Related papers: Torelli theorem via Fourier-Mukai transform

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We give a structure theorem for the $m$-torsion of the Jacobian of a general superelliptic curve $y^m=F(x)$. We study existence of torsion on curves of the form $y^q=x^p-x+a$ over finite fields of characteristic $p$. We apply those results…

Algebraic Geometry · Mathematics 2021-06-10 Wojciech Wawrów

The Baum-Connes map for finitely generated free abelian groups is a K-theoretic analogue of the Fourier-Mukai transform from algebraic geometry. We describe this K-theoretic transform in the language of topological correspondences, and…

K-Theory and Homology · Mathematics 2020-07-29 Heath Emerson , Dan Hudson

Using the technique of the Fourier-Mukai transform we give an explicit set of generators of the ideal defining an algebraic curve as a subscheme of its Jacobian. Essentially, these ideals are generated by the Fay's trisecant identities.

Algebraic Geometry · Mathematics 2016-08-14 Daniel Hernández Serrano , Francisco José Plaza Martín , José M. Muñoz Porras

In this paper we prove a relative version of the classical Mumford-Newstead theorem for a family of smooth curves degenerating to a reducible curve with a simple node. We also prove a Torelli-type theorem by showing that certain moduli…

Algebraic Geometry · Mathematics 2016-05-17 Suratno Basu

In this paper, a monotonicity property for the quotient of two Jacobi's theta functions with respect to the modulus $k$ is proved.

Complex Variables · Mathematics 2013-06-27 Klaus Schiefermayr

For each $f\!:\!\mathbb{R}\to\mathbb{C}$ that is Henstock--Kurzweil integrable on the real line, or is a distribution in the completion of the space of Henstock--Kurzweil integrable functions in the Alexiewicz norm, it is shown that the…

Classical Analysis and ODEs · Mathematics 2025-01-29 Erik Talvila

Determinantal formulae for Jacobian theta functions that go back to Klein are elaborated, via an idea due to Matone and Volpato. Also, the natural square roots of theta constants on the moduli space of curves whose existence was shown by…

Algebraic Geometry · Mathematics 2008-05-07 Nicholas Shepherd-Barron

We show how to calculate the Euler characteristic of an affine Jacobi variety of a spectral curve from its defining equations.

Algebraic Geometry · Mathematics 2007-05-23 A. Nakayashiki , F. Smirnov

Properties of four quintic theta functions are developed in parallel with those of the classical Jacobi null theta functions. The quintic theta functions are shown to satisfy analogues of Jacobi's quartic theta function identity and…

Number Theory · Mathematics 2013-04-03 Tim Huber

We prove the famous Faber intersection number conjecture and other more general results by using a recursion formula of $n$-point functions for intersection numbers on moduli spaces of curves. We also present some vanishing properties of…

Algebraic Geometry · Mathematics 2011-03-24 Kefeng Liu , Hao Xu

In the previous author's paper the Macdonald norm conjecture (including the famous constant term conjecture) was proved. This paper contains the proof of the remaining two (the duality and evaluation conjectures). The evaluation theorem is…

q-alg · Mathematics 2009-10-28 Ivan Cherednik

The large variety of Fourier transforms in geometric algebras inspired the straight forward definition of ``A General Geometric Fourier Transform`` in Bujack et al., Proc. of ICCA9, covering most versions in the literature. We showed which…

Algebraic Geometry · Mathematics 2013-06-11 Roxana Bujack , Gerik Scheuermann , Eckhard Hitzer

This note concerns exponential sheaves and the "universal" Fourier transform on them. Fourier invertibility and the subsequent Fourier miracle is demonstrated. Further, t-structures and realizations are constructed and shown to have…

Algebraic Geometry · Mathematics 2026-05-19 R. Virk

Tomita-Takesaki theory associates a positive operator called the "modular operator" with a von Neumann algebra and a cyclic-separating vector. Tomita's theorem says that the unitary flow generated by the modular operator leaves the algebra…

Operator Algebras · Mathematics 2024-10-24 Jonathan Sorce

We discuss the notion of the orbifold transform, and illustrate it on simple examples. The basic properties of the transform are presented, including transitivity and the exponential formula for symmetric products. The connection with the…

Group Theory · Mathematics 2009-11-13 P. Bantay

We propose a slightly modified definition for the Fourier-Mukai transform (on abelian varieties) that makes it much easier to remember various formulas. As an application, we give relatively short proofs for two important theorems: the…

Algebraic Geometry · Mathematics 2019-06-03 Christian Schnell

We prove the following converse of Riemann's Theorem: let (A,\Theta) be an indecomposable principally polarized abelian variety whose theta divisor can be written as a sum of a curve and a codimension two subvariety \Theta=C+Y. Then C is…

Algebraic Geometry · Mathematics 2018-10-31 Stefan Schreieder

Let $g \geq 2$ and let the Torelli map denote the map sending a genus $g$ curve to its principally polarized Jacobian. We verify the well known fact that the map induced on tangent spaces by the Torelli map is dual to the multiplication map…

Algebraic Geometry · Mathematics 2019-11-07 Aaron Landesman

We extend some results recently obtained by Dan Romik about the Taylor coefficients of the theta function $\theta_{3}\left(1\right)$ to the case $\theta_{3}\left(q\right)$ of an arbitrary value of the elliptic modulus $k.$ These results are…

Number Theory · Mathematics 2020-03-18 Tanay Wakhare , Christophe Vignat

We prove an inversion theorem for the Fourier transform defined for normal functions, in the case when such functions are of moderate decrease, and in dimensions 2 and 3. This improves on Carleson's general almost everywhere convergence…

Mathematical Physics · Physics 2024-04-01 Tristram de Piro