Results 41 to 50 of about 25,625 (190)
Equivariant geometry of singular cubic threefolds
Forum of Mathematics, SigmaWe study linearizability of actions of finite groups on singular cubic threefolds, using cohomological tools, intermediate Jacobians, Burnside invariants, and the equivariant Minimal Model Program.
Ivan Cheltsov +2 more
doaj +1 more source
PLANAR HARMONIC MAPPINGS WITH A GIVEN JACOBIAN
Проблемы анализа, 2023 The article is devoted to the study of the Jacobians of sense-preserving harmonic mappings in the unit disk of the complex plane. The main result is a criterion for an infinitely differentiable positive function to be a Jacobian of some sense-preserving
S. Yu. Graf, I. A. Nikitin
doaj +1 more source
Non-supersingular hyperelliptic jacobians [PDF]
Bulletin de la Société mathématique de France, 2004 In his previous papers the author proved that in characteristic different from 2 the jacobian J(C) of a hyperelliptic curve C: y^2=f(x) has only trivial endomorphisms over an algebraic closure K_a of the ground field K if the Galois group of the irreducible polynomial f(x) in K[x] is either the full symmetric group S_n or the alternating group A_n ...
openaire +3 more sources
Discrete logarithms in curves over finite fields [PDF]
, 2007 A survey on algorithms for computing discrete logarithms in Jacobians of curves over finite ...
Andreas Enge +4 more
core +5 more sources
Benchmarking results for the Newton–Anderson method
Results in Applied Mathematics, 2020 This paper primarily presents numerical results for the Anderson accelerated Newton method on a set of benchmark problems. The results demonstrate superlinear convergence to solutions of both degenerate and nondegenerate problems.
Sara Pollock, Hunter Schwartz
doaj +1 more source
Endomorphisms of superelliptic jacobians
, 2016 Let K be a field of characteristic zero, n>4 an integer, f(x) an irreducible polynomial over K of degree n, whose Galois group is doubly transitive simple non-abelian group.
A. Elkin +29 more
core +1 more source
Observations on the Computation of Eigenvalue and Eigenvector Jacobians
Algorithms, 2019 Many scientific and engineering problems benefit from analytic expressions for eigenvalue and eigenvector derivatives with respect to the elements of the parent matrix.
Andrew J. Liounis +2 more
doaj +1 more source
The Jacobian of a nonorientable Klein surface, II
, 2005 The aim here is to continue the investigation in \cite{AB} of Jacobians of a Klein surface and also to correct an error in \cite{AB}.Comment: 8 ...
Arés-Gastesi, Pablo, Biswas, Indranil
core +2 more sources
Effective results onPicard bundles via M-regularity
Le Matematiche, 2008 In this paper we study some properties, namely Global Generation and Strong Normal Presentation, of specific types of (twists of) Picard bundles over the Jacobian of a curve. Our main tool is the notion of M-regularity introduced by G. Pareschi and M.Popa.
Ada Boralevi, Francesco Prantil
doaj
The Quarterly Journal of MathematicsABSTRACT Looking for a geometric framework to study plectic Heegner points, we define a collection of abelian varieties – called plectic Jacobians—using the middle-degree cohomology of quaternionic Shimura varieties (QSVs). The construction is inspired by the definition of Griffiths’ intermediate Jacobians and rests on Nekovář–Scholl’s ...
openaire +2 more sources