Results 41 to 50 of about 6,408,424 (182)
Heights on ‘hybrid orbits’ in Shimura varieties
Abstract We prove the ‘hybrid conjecture’ which is a common generalisation of the André–Oort conjecture and the André–Pink–Zannier conjecture, in the case of Shimura varieties of abelian type.
Rodolphe Richard, Andrei Yafaev
wiley +1 more source
Generalizations of Wendroff Integral Inequalities and Their Discrete Analogues
Generalizations of Wendroff type integral inequalities with four dependent limits and their discrete analogues are obtained. In applications, these results are used to establish the stability estimates for the solution of the Goursat problem.
Maksat Ashyraliyev
doaj +1 more source
On 7‐adic Galois representations for elliptic curves over Q$\mathbb {Q}$
Abstract In recent years, significant progress has been made on Mazur's Program B, with many authors beginning a systematic classification of all possible images of p$p$‐adic Galois representations attached to elliptic curves over Q$\mathbb {Q}$. Currently, the classification is only complete for p∈{2,3,13,17}$p \in \lbrace 2,3,13,17\rbrace$.
Lorenzo Furio, Davide Lombardo
wiley +1 more source
Amenability versus non‐exactness of dense subgroups of a compact group
Abstract Given a countable residually finite group, we construct a compact group K and two elements w and u of K with the following properties: The group generated by w and u3 is amenable, the group generated by w and u contains a copy of the given group, and these two groups are dense in K.
Masato Mimura
wiley +1 more source
On Riemann method for solving a mixed problem
The formula for solution of a problem for an equation with the higher partial derivative of the general type is constructed using Riemann method. In this problem the solution is found in the characteristic parallelepiped with separated by the non ...
A. N. Mironov
doaj +1 more source
Fundamental Solutions of the Axial Symmetric Goursat Problem [PDF]
Summary: Fundamental solutions with a given boundary condition on the characteristics of relativistic problems with axial symmetry are considered. This is the so-called Goursat problem, or zero plane formalism in Dirac's terminology, or modification of the proper time method in the Fock-Nambu-Schwinger formalism.
Borghardt, A. A. +2 more
openaire +2 more sources
Existence of Weak Solutions for a Degenerate Goursat‐Type Linear Problem
ABSTRACT For a generalization of the Gellerstedt operator with mixed‐type Dirichlet boundary conditions to a suitable Tricomi domain, we prove the existence and uniqueness of weak solutions of the linear problem and for a generalization of this problem.
Olimpio Hiroshi Miyagaki +2 more
wiley +1 more source
We examine the expansions of the solutions of the general Heun equation in terms of the Gauss hypergeometric functions. We present several expansions using functions, the forms of which differ from those applied before. In general, the coefficients of the expansions obey three‐term recurrence relations.
T. A. Ishkhanyan +3 more
wiley +1 more source
ABSTRACT As part of the efforts aimed at extending Painlevé and Gambier's work on second‐order equations in one variable to first‐order ones in two, in 1981, Bureau classified the systems of ordinary quadratic differential equations in two variables which are free of movable critical points (which have the Painlevé Property).
Adolfo Guillot
wiley +1 more source
Singular Solutions to a (3 + 1)‐D Protter‐Morawetz Problem for Keldysh‐Type Equations
We study a boundary value problem for (3 + 1)‐D weakly hyperbolic equations of Keldysh type (problem PK). The Keldysh‐type equations are known in some specific applications in plasma physics, optics, and analysis on projective spaces. Problem PK is not well‐posed since it has infinite‐dimensional cokernel.
Nedyu Popivanov +4 more
wiley +1 more source

