Results 51 to 60 of about 161 (99)

On algebra of theta functions [PDF]

open access: yes, 2007
This thesis consists of two parts. Both parts are about the algebra of theta functions. The first part is on the construction of the theta Hecke algebra, which contains both the graded algebra of theta functions and the Hecke algebra of the Heisenberg ...
Tam, Kam Fai
core  

On the grössencharacter of an abelian variety in a parametrized family [PDF]

open access: yes, 1983
We consider families of abelian varieties parametrized by classical theta-functions, and show that specifying the family and a CM point in Siegel space determines the grössencharacter of the corresponding CM abelian variety.
Robert S. Rumely
core   +1 more source

Fast evaluation of Riemann theta functions in any dimension [PDF]

open access: yes
We describe an algorithm to numerically evaluate Riemann theta functions in any dimension in quasi-linear time in terms of the required precision, uniformly on reduced input.
Kieffer, Jean, Elkies, Noam, D.
core   +4 more sources

Abelian varieties in the theta model and applications in cryptography [PDF]

open access: yes
Isogenies of principally polarised abelian varieties have been used in recent years to build cryptographic protocols that are secure against quantum computers.
SFERLAZZA, ALESSANDRO
core  

Curves of genus 2 with real multiplication by a square root of 5 [PDF]

open access: yes, 1998
Our aim in this work is to produce equations for curves of genus 2 whose Jacobians have real multiplication (RM) by $\mathbb{Q}(\sqrt{5})$, and to examine the conjecture that any abelian surface with RM by $\mathbb{Q}(\sqrt{5})$ is isogenous to a simple ...
Wilson, J.
core   +2 more sources

Problema de Schottky [PDF]

open access: yes, 2023
IlustracionesAn accessible introduction to the Schottky problem is given, with explicit computations included. The Schottky problem asks what abelian varieties are jacobian varieties, where a jacobian variety is a certain complex torus constructed out ...
Echavarría Arenas, Santiago
core  

Sphere Partition Function of Calabi-Yau GLSMs. [PDF]

open access: yesCommun Math Phys, 2022
Erkinger D, Knapp J.
europepmc   +1 more source

A generalisation of Miller’s algorithm and applications to pairing computations on abelian varieties [PDF]

open access: yes, 2013
In this paper, we use the theory of theta functions to generalize to all abelian varieties the usual Miller\u27s algorithm to compute a function associated to a principal divisor.
David Lubicz, Damien Robert
core  

Tropical theta functions for tropical abelian varieties [PDF]

open access: yes, 2021
In questa tesi magistrale vengono studiate tori reali dotati di una struttura tropicale. L'obiettivo principale è la dimostrazione, in analogia con la teoria delle varietà abeliane complesse, di un teorema che fornisce condizioni necessarie per l ...
Maccarini, Niccolò
core  

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