Results 41 to 50 of about 503,688 (304)

A Note on Existence of Mild Solutions for Second-Order Neutral Integro-Differential Evolution Equations with State-Dependent Delay

open access: yesFractal and Fractional, 2021
This article is mainly devoted to the study of the existence of solutions for second-order abstract non-autonomous integro-differential evolution equations with infinite state-dependent delay.
Shahram Rezapour   +4 more
doaj   +1 more source

Memory kernel reconstruction problems in the integro‐differential equation of rigid heat conductor

open access: yesMathematical methods in the applied sciences, 2020
The inverse problems of determining the energy–temperature relation α(t) and the heat conduction relation k(t) functions in the one‐dimensional integro‐differential heat equation are investigated.
D. Durdiev, Z. Zhumaev
semanticscholar   +1 more source

On the Reduction of Integro-Differential Equations [PDF]

open access: yesTransactions of the American Mathematical Society, 1914
which is satisfied by the potential V of an electric field in an isotropic medium, in the so-called " static case " of hysteresis.t By solving this equation, regarded as an integral equation, for V2V, we are led to the differential equation of Poisson to determine V.
openaire   +2 more sources

An integro-differential equation [PDF]

open access: yesProceedings of the American Mathematical Society, 1980
The vector equation \[ x ′ ( t ) = A ( t ) x ( t ) + ∫ 0 t C ( t , s ) D ( x ( s ) )
openaire   +1 more source

On Some Operators Involving Hadamard Derivatives [PDF]

open access: yes, 2013
In this paper we introduce a novel Mittag--Leffler-type function and study its properties in relation to some integro-differential operators involving Hadamard fractional derivatives or Hyper-Bessel-type operators.
Garra, Roberto, Polito, Federico
core   +1 more source

On the existence of solutions for a pointwise defined multi-singular integro-differential equation with integral boundary condition

open access: yes, 2020
It is important that we increase our ability for studying of complicate fractional integro-differential equation. In this paper, we investigates the existence of solutions for a pointwise defined multi-singular fractional differential equation under some
M. Talaee   +3 more
semanticscholar   +1 more source

On $$L_p$$-solvability of stochastic integro-differential equations [PDF]

open access: yesStochastics and Partial Differential Equations: Analysis and Computations, 2020
AbstractA class of (possibly) degenerate stochastic integro-differential equations of parabolic type is considered, which includes the Zakai equation in nonlinear filtering for jump diffusions. Existence and uniqueness of the solutions are established in Bessel potential spaces.
István Gyöngy, Sizhou Wu
openaire   +7 more sources

Stability of the spline collocation method for second order Volterra integro‐differential equations

open access: yesMathematical Modelling and Analysis, 2004
Numerical stability of the spline collocation method for the 2nd order Volterra integro‐differential equation is investigated and connection between this theory and corresponding theory for the 1st order Volterra integro‐differential equation is ...
M. Tarang
doaj   +1 more source

Existence and uniqueness of a solution to a partial integro-differential equation by the method of lines

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2008
In this work we consider a partial integro-differential equation. We reformulate it a functional integro-differential equation in a suitable Hilbert space. We apply the method of lines to establish the existence and uniqueness of a strong solution.
Dhirendra Bahuguna, J. Dabas
doaj   +1 more source

Accelerating Solutions in Integro-Differential Equations [PDF]

open access: yesSIAM Journal on Mathematical Analysis, 2011
In this paper, we study the spreading properties of the solutions of an integro-differential equation of the form $u_t=J\ast u-u+f(u).$ We focus on equations with slowly decaying dispersal kernels $J(x)$ which correspond to models of population dynamics with long-distance dispersal events. We prove that for kernels $J$ which decrease to $0$ slower than
openaire   +6 more sources

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