Results 11 to 20 of about 251 (54)

Some remarks on a fixed point theorem of Krasnoselskii [PDF]

open access: yes, 2003
Using a particular locally convex space and Schaefer's theorem, a generalization of Krasnoselskii's fixed point Theorem is proved. This result is further applied to certain nonlinear integral equation proving the existence of a solution on $\mathbb{R}_{+}
Avramescu, C.
core   +5 more sources

Polynomial solutions of nonlinear integral equations [PDF]

open access: yes, 2008
We analyze the polynomial solutions of a nonlinear integral equation, generalizing the work of C. Bender and E. Ben-Naim. We show that, in some cases, an orthogonal solution exists and we give its general form in terms of kernel polynomials.Comment: 10 ...
Andrews G E   +5 more
core   +2 more sources

Global attractors for nonlinear viscoelastic equations with memory [PDF]

open access: yes, 2013
We study the asymptotic properties of the semigroup S(t) arising from a nonlinear viscoelastic equation with hereditary memory on a bounded three-dimensional domain written in the past history framework of Dafermos.
Conti, Monica   +2 more
core   +1 more source

Discrete Modified Projection Methods for Urysohn Integral Equations with Green's Function Type Kernels [PDF]

open access: yes, 2019
In the present paper we consider discrete versions of the modified projection methods for solving a Urysohn integral equation with a kernel of the type of Green's function. For $r \geq 0,$ a space of piecewise polynomials of degree $\leq r $ with respect
Kulkarni, Rekha P., Rakshit, Gobinda
core   +4 more sources

Decay estimates for nonlinear nonlocal diffusion problems in the whole space [PDF]

open access: yes, 2013
In this paper we obtain bounds for the decay rate in the $L^r (\rr^d)$-norm for the solutions to a nonlocal and nolinear evolution equation, namely, $$u_t(x,t) = \int_{\rr^d} K(x,y) |u(y,t)- u(x,t)|^{p-2} (u(y,t)- u(x,t)) \, dy, $$ with $ x \in \rr^d$, $
Antolin, Angel San   +3 more
core   +3 more sources

Existence of weak solutions for general nonlocal and nonlinear second-order parabolic equations [PDF]

open access: yes, 2008
In this article, we provide existence results for a general class of nonlocal and nonlinear second-order parabolic equations. The main motivation comes from front propagation theory in the cases when the normal velocity depends on the moving front in a ...
Alvarez   +20 more
core   +5 more sources

Mass transport problems obtained as limits of p-Laplacian type problems with spatial dependence

open access: yesAdvances in Nonlinear Analysis, 2014
We consider the following problem: given a bounded convex domain Ω⊂ℝN${\Omega \subset \mathbb {R}^N}$ we consider the limit as p → ∞ of solutions to -div(bp-p|Du|p-2Du)=f+-f-${- \operatorname{div} (b_{p}^{-p} |Du|^{p-2} Du)=f_+ - f_-}$ in Ω and bp-p|Du|p-
Mazón José M.   +2 more
doaj   +1 more source

Solving some nonlinear equations by successive approximations

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 31, Issue 6, Page 353-358, 2002., 2002
The iterations scheme generated by an infinite sequence of operators satisfying some contractive conditions in a complete metric space is used to solve some integral equations of Hammerstein type.
Albert K. Kalinde
wiley   +1 more source

Volterra and Urysohn integral equations in Banach spaces

open access: yesInternational Journal of Stochastic Analysis, Volume 11, Issue 4, Page 449-464, 1998., 1997
We use topological methods to present existence principles and theory for integral equations in Banach spaces.
Donal O′Regan
wiley   +1 more source

Exotic dynamics in a firing rate model of neural tissue with threshold accommodation [PDF]

open access: yes, 2007
Many of the equations describing the dynamics of neural systems are written in terms of firing rate functions, which themselves are often taken to be threshold functions of synaptic activity.
Coombes, Stephen, Owen, Markus R.
core   +2 more sources

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