Results 81 to 90 of about 1,459,968 (190)

On one functional-differential quasilinear hyperbolic equation

open access: yes, 2020
© 2017, Allerton Press, Inc. For functional-differential quasilinear hyperbolic equation not investigated earlier, we consider problems with conditions on characteristics and obtain conditions of ...
Utkina E.
core  

Entropy Solution for a Hyperbolic Equation

open access: yesZeitschrift für Analysis und ihre Anwendungen, 2001
Nonlinear hyperbolic systems of conservation laws play a central role in Science and Engineering, and their mathematical theory as well as their numerical approximation have made recent significative progress. This paper deals with the existence and uniqueness of an entropy solution of the Cauchy problem for the quasi-linear equation
openaire   +3 more sources

Conjugacy and subgroups of word-hyperbolic groups [PDF]

open access: yes
This thesis describes a number of algorithms and properties relating to Gromov’s word-hyperbolic groups. A fuller outline of the thesis is given, and a number of basic concepts relating to metric spaces, hyperbolicity and automaticity are first ...
Buckley, David John
core  

Constructing general solution of an hyperbolic equation with two singular coefficients [PDF]

open access: yes, 2019
equation of hyperbolic type, singular coefficient, general ...
Rafiqov, А., O’rinov, A
core  

Hyperbolic reflections on pell's equation

open access: yesJournal of Number Theory, 1989
It was conjectured by \textit{N. C. Ankeny}, \textit{E. Artin} and \textit{S. Chowla} [Ann. Math., II. Ser. 56, 479-493 (1952; Zbl 0049.306)] that the fundamental solution \((x_ 0,y_ 0)\) to the Pellian equation \(x^ 2- py^ 2=-1\) (p a prime congruent to 1 modulo 4) satisfies p \(\nmid y_ 0\). In an attempt to understand the nature of this problem, the
openaire   +1 more source

Moments of the generalized hyperbolic distribution [PDF]

open access: yes
In this paper we demonstrate a recursive method for obtaining the moments of the generalized hyperbolic distribution. The method is readily programmable for numerical evaluation of moments.
Scott, David J   +3 more
core  

Volterra integral equation method for solving some hyperbolic equation problems

open access: yes, 2003
url: http://sjam.selcuk.edu.tr/sjam/article/view/130The Cauchy problem for a hyperbolic equation with function coefficients of the first partial derivatives with respect to time and space variables is considered.
Işık, Ali, Yakhno, Valery G.
core  

On a parabolic-hyperbolic Penrose-Fife phase-field system

open access: yesElectronic Journal of Differential Equations, 2002
The initial and boundary value problem is studied for a non-conserved phase-field system derived from the Penrose-Fife model for the kinetics of phase transitions.
Pierluigi Colli   +2 more
doaj  

Hyperbolic heat conduction equation (HHCE)

open access: yes, 2006
It is shown that for ultra short time scales the parabolic heat conduction equation fails and, therefore, the hyperbolic heat conduction equation must be used. Furthermore, a derivation of the HHCE is given in the frame of the extended thermodynamics.
Hüttner, Bernd
core  

Home - About - Disclaimer - Privacy