Results 11 to 20 of about 99,243 (193)

Study on Optimal Conventional Triaxial Strength Criterion of Rock Based on Gauss-Newton Method [PDF]

open access: yesE3S Web of Conferences
Conventional triaxial strength criteria are used widely to judge the rock failure states. In this paper, the nonlinear least squares method (Guass-newton method) is used to fit the regression relationships between the maximum principal stress σ1 as well ...
Tian Mengtao   +4 more
doaj   +1 more source

Anomalous Solutions to Nonlinear Hyperbolic Equations [PDF]

open access: yes, 2020
The behavior of sufficiently regular solutions to semilinear hyperbolic equations has attracted a great deal of attention in the past decades, concerning local/global existence, finite time blow-up, critical exponents, and propagation of singularities. Solutions of lower regularity may exhibit unexpected (anomalous) propagation of singularities.
openaire   +2 more sources

On homogenization of nonlinear hyperbolic equations

open access: yesCommunications on Pure & Applied Analysis, 2005
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Efendiev, Yalchin, Popov, Bojan
openaire   +2 more sources

A version of the Glimm method based on generalized Riemann problems [PDF]

open access: yes, 2006
We introduce a generalization of Glimm's random choice method, which provides us with an approximation of entropy solutions to quasilinear hyperbolic system of balance laws. The flux-function and the source term of the equations may depend on the unknown
Hong, John M., LeFloch, Philippe G.
core   +3 more sources

Weak Continuity and Compactness for Nonlinear Partial Differential Equations [PDF]

open access: yes, 2015
We present several examples of fundamental problems involving weak continuity and compactness for nonlinear partial differential equations, in which compensated compactness and related ideas have played a significant role.
Chen, Gui-Qiang G.
core   +1 more source

A boundary value problem for nonlinear differential equation with arbitrary functions

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2017
This article describes a semi-batch nonlinear boundary value problem for differential equations with partial derivatives. The equations containing arbitrary parameters were considered in Whitham G.B.
N. T. Orumbayeva, G. Sabitbekova
doaj   +1 more source

New Generalized Hyperbolic Functions to Find New Exact Solutions of the Nonlinear Partial Differential Equations

open access: yesJournal of Mathematics, 2013
We firstly give some new functions called generalized hyperbolic functions. By the using of the generalized hyperbolic functions, new kinds of transformations are defined to discover the exact approximate solutions of nonlinear partial differential ...
Yusuf Pandir, Halime Ulusoy
doaj   +1 more source

On solvability of nonlinear boundary value problems with integral condition for the system of hyperbolic equations

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2015
For system of hyperbolic equations of second order a nonlinear boundary value problem with integral condition is considered. By introducing new unknown functions the investigated problem is reduced to an equivalent problem involving one-parametered ...
Anar Assanova
doaj   +1 more source

Inverse problems for nonlinear hyperbolic equations

open access: yesDiscrete & Continuous Dynamical Systems - A, 2021
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Uhlmann, Gunther Alberto Arancibia   +1 more
openaire   +3 more sources

Generalized Hyperbolic Function Solution to a Class of Nonlinear Schrödinger-Type Equations

open access: yesJournal of Applied Mathematics, 2012
With the help of the generalized hyperbolic function, the subsidiary ordinary differential equation method is improved and proposed to construct exact traveling wave solutions of the nonlinear partial differential equations in a unified way.
Zeid I. A. Al-Muhiameed   +1 more
doaj   +1 more source

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