Results 41 to 50 of about 37,007 (164)

Existence and uniqueness of solutions to singular ODE’s

open access: yesArchiv der Mathematik, 2010
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Gorka, Przemyslaw, Rybka, Piotr
openaire   +4 more sources

Positive solutions for a class of singular boundary-value problems

open access: yesElectronic Journal of Differential Equations, 2006
This paper concerns the existence and multiplicity of positive solutions for Sturm-Liouville boundary-value problems. We use fixed point theorems and the sub-super solutions method to two solutions to the problem studied.
Dang Dinh Hai
doaj  

Singularities of the solution of the Cauchy problem

open access: yes, 2017
In this chapter, we use the formula for the solution of the Cauchy problem in terms of the ramified integrals obtained in Chapter 6 and describe the singularities of the solution. © Springer International Publishing AG 2017.
Savin A., Sternin B.
openaire   +3 more sources

Iterative Solution of Singular Systems with Applications [PDF]

open access: yes, 2014
This paper deals with efficient solution of singular symmetric positive semidefinite problems. Our motivation arises from the need to solve special problems of geotechnics, e.g. to perform upscaling analysis of geocomposites. In that and other applications we have to solve boundary problems with pure Neumann boundary conditions.
Blaheta, R. (Radim)   +2 more
openaire   +2 more sources

Singular solutions of doubly singular parabolic equations with absorption

open access: yesElectronic Journal of Differential Equations, 2000
In this paper we study a doubly singular parabolic equation with absorption, $$ u_t = hbox{ m div} ( |abla u^m|^{p-2}abla u^m ) -u^q $$ with $m>0$, $p>1$, $m(p-1)1$.
Yuanwei Qi, Mingxin Wang
doaj  

The Singularities of the Solutions of the Cauchy Problem

open access: yesPublications of the Research Institute for Mathematical Sciences, 1969
This paper is concerned with the Cauchy problem of linear partial differential equation with holomorphic coefficients in complex domain. The Cauchy-Kowalewski theorem asserts that locally there exists a unique holomorphic solution of the Cauchy problem provided that the initial surface is non-character istic and the initial data are holomorphic.
openaire   +2 more sources

Sweeping algebraic curves for singular solutions

open access: yesJournal of Computational and Applied Mathematics, 2010
Many problems give rise to polynomial systems. These systems often have several parameters and we are interested to study how the solutions vary when we change the values for the parameters. Using predictor-corrector methods we track the solution paths. A point along a solution path is critical when the Jacobian matrix is rank deficient.
Kathy Piret, Jan Verschelde
openaire   +2 more sources

Exact behavior around isolated singularity for semilinear elliptic equations with a log-type nonlinearity

open access: yesAdvances in Nonlinear Analysis, 2018
We study the semilinear elliptic ...
Ghergu Marius   +2 more
doaj   +1 more source

Singular solution to Special Lagrangian Equations

open access: yesAnnales de l'Institut Henri Poincaré C, Analyse non linéaire, 2010
We prove the existence of non-smooth solutions to three-dimensional Special Lagrangian Equations in the non-convex case. Résumé Nous démontrons l'existence de solutions singulières d'équations speciales lagrangiennes en dimension trois, dans le cas non convexe.
Nadirashvili, Nikolai, Vlăduţ, Serge
openaire   +3 more sources

On the existence of solutions for a multi-singular pointwise defined fractional system

open access: yesAdvances in Difference Equations, 2020
One of best ways for increasing our abilities in exact modeling of natural phenomena is working with a singular version of different fractional differential equations. As is well known, multi-singular equations are a modern version of singular equations.
Ali Mansouri   +2 more
doaj   +1 more source

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