Results 31 to 40 of about 932 (84)

Ulam-Hyers stability for partial differential inclusions

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2012
Using the weakly Picard operator technique, we will present Ulam-Hyers stability results for integral inclusions of Fredholm and Volterra type and for the Darboux problem associated to a partial differential inclusion.
V. Lazar
doaj   +1 more source

ON A NEW CLASS OF MULTIVALUED WEAKLY PICARD OPERATORS ON COMPLETE METRIC SPACES

open access: yesTaiwanese Journal of Mathematics, 2015
In the present paper, the concept of nonlinear $F$-contraction formultivalued mappings in metric spaces is introduced and considering the new proof technique, which was used for single valued maps by Wardowski [D. Wardowski, Fixed points of a new type of contractive mappings in complete metric spaces, Fixed Point Theory Appl.
Altun, Ishak   +2 more
openaire   +2 more sources

Local mirror symmetry and the sunset Feynman integral [PDF]

open access: yes, 2016
We study the sunset Feynman integral defined as the scalar two-point self-energy at two-loop order in a two dimensional space-time. We firstly compute the Feynman integral, for arbitrary internal masses, in terms of the regulator of a class in the ...
Bloch, Spencer   +2 more
core   +2 more sources

Ulam-Hyers stability of fixed point equations for multivalued operators on KST spaces [PDF]

open access: yesSurveys in Mathematics and its Applications, 2014
In this paper we define the notions of Ulam-Hyers stability on KST spaces and cw-weakly Picard operator for the multivalued operators case in order to establish a relation between these.
Liliana Guran Manciu
doaj  

On the number of zeros of Melnikov functions [PDF]

open access: yes, 2010
We provide an effective uniform upper bond for the number of zeros of the first non-vanishing Melnikov function of a polynomial perturbations of a planar polynomial Hamiltonian vector field.
Benditkis, Sergey, Novikov, Dmitry
core   +3 more sources

Period preserving nonisospectral flows and the moduli space of periodic solutions of soliton equations

open access: yes, 1995
Flows on the moduli space of the algebraic Riemann surfaces, preserving the periods of the corresponding solutions of the soliton equations are studied.
Grinevich, P. G., Schmidt, M. U.
core   +1 more source

Differential equations associated to Families of Algebraic Cycles [PDF]

open access: yes, 2008
We develop a theory of differential equations associated to families of algebraic cycles in higher Chow groups (i.e., motivic cohomology groups). This formalism is related to inhomogeneous Picard--Fuchs type differential equations.
del Angel, Pedro Luis   +1 more
core   +3 more sources

Nonlinear Differential Equations Satisfied by Certain Classical Modular Forms

open access: yes, 2010
A unified treatment is given of low-weight modular forms on \Gamma_0(N), N=2,3,4, that have Eisenstein series representations. For each N, certain weight-1 forms are shown to satisfy a coupled system of nonlinear differential equations, which yields a ...
A. Enneper   +40 more
core   +1 more source

Variations for Some Painlev\'e Equations [PDF]

open access: yes, 2019
This paper first discusses irreducibility of a Painlev\'e equation $P$. We explain how the Painlev\'e property is helpful for the computation of special classical and algebraic solutions.
Acosta-Humánez, Primitivo B.   +2 more
core   +2 more sources

Computational Analysis of Common Fixed Points in b‐Metric Spaces With Applications to Well‐Posedness and Projectile Motion

open access: yesInternational Journal of Differential Equations, Volume 2026, Issue 1, 2026.
This article establishes common fixed‐point results for a pair of self‐mappings governed by a new Suzuki‐type contraction in the setting of complete b‐metric spaces. The proposed framework generalizes several existing contraction principles in the literature by relaxing the traditional triangle inequality and incorporating a Suzuki‐type restriction on ...
Manju Devi   +3 more
wiley   +1 more source

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