Results 1 to 10 of about 15,297,882 (275)

On the iterative method for solution of direct and inverse problems for parabolic equations [PDF]

open access: yesИзвестия Саратовского университета. Новая серия: Математика. Механика. Информатика, 2023
The paper is devoted to approximate methods for solution of direct and inverse problems for parabolic equations. An approximate method for the solution of the initial problem for multidimensional nonlinear parabolic equation is proposed.
Boykov, Il'ya V.   +1 more
doaj   +1 more source

The second initial-boundary value problem with integral displacement for second-order hyperbolic and parabolic equations [PDF]

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2021
In this paper, we study the solvability of some non-local analogs of the second initial-boundary value problem for multidimensional hyperbolic and parabolic equations of the second order.
Alexander I. Kozhanov   +1 more
doaj   +1 more source

Doubling Properties for Second Order Parabolic Equations [PDF]

open access: yesThe Annals of Mathematics, 1999
We prove the doubling property of L-caloric measure corresponding to the second order parabolic equation in the whole space and in Lipschitz domains. For parabolic equations in the divergence form, a weaker form of the doubling property follows easily from a recent result, the backward Harnack inequality, and known estimates of Green's function.
Safonov, Mikhail V., Yuan, Yu
openaire   +2 more sources

Non-local Problems with Integral Displacement for Highorder Parabolic Equations

open access: yesИзвестия Иркутского государственного университета: Серия "Математика", 2021
The aim of this paper is to study the solvability of solutions of non-local problems with integral conditions in spatial variables for high-order linear parabolic equations in the classes of regular solutions (which have all the squared derivatives ...
A.I. Kozhanov, A.V. Dyuzheva
doaj   +1 more source

Exact method to solve of linear heat transfer problems [PDF]

open access: yesE3S Web of Conferences, 2021
When approximating multidimensional partial differential equations, the values of the grid functions from neighboring layers are taken from the previous time layer or approximation.
Abdullayev Akmaljon   +2 more
doaj   +1 more source

On the second-order regularity of solutions to the parabolic p-Laplace equation [PDF]

open access: yesJournal of Evolution Equations, 2022
AbstractIn this paper, we study the second-order Sobolev regularity of solutions to the parabolic p-Laplace equation. For any p-parabolic function u, we show that $$D(\left| Du\right| ^{\frac{p-2+s}{2}}Du)$$ D ( D
Yawen Feng   +2 more
openaire   +4 more sources

Carleman inequality for a class of super strong degenerate parabolic operators and applications

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2023
In this paper, we present a new Carleman estimate for the adjoint equations associated to a class of super strong degenerate parabolic linear problems. Our approach considers a standard geometric imposition on the control domain, which can not be removed
Bruno Sérgio Araújo   +2 more
doaj   +1 more source

Dirichlet’s problem for a third-order parabolic hyperbolic type equation of the second kind [PDF]

open access: yesE3S Web of Conferences, 2023
Equations of mixed type, the degeneracy line of which is the envelope of a family of characteristics, therefore, is itself also a characteristic, in the literature it is customary to call equations of mixed type of the second kind, which causes ...
Abdullaev A. A.   +2 more
doaj   +1 more source

Solving Parabolic Partial Delay Differential Equations Using The Explicit Method And Higher Order Differences

open access: yesJournal of Kufa for Mathematics and Computer, 2013
In this paper we use the higher order differences for second order (derivative)  in solving  parabolic partial delay differential equations by using the explicit method and we get results are more closer to the exact values than the results which can ...
Amal Khalaf Haydar
doaj   +1 more source

Parabolic equations of the second order [PDF]

open access: yesTransactions of the American Mathematical Society, 1959
from a unified point of view, namely, the extensive use of Green's function. Our main interest is concerned with the first mixed boundary problem (for definition, see ?4) for f linear or nonlinear in u, Harnack theorems, etc. Most of our methods are known. Green's function for the heat equation in rectangular domains was constructed already by E.
openaire   +1 more source

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