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Wyświetlanie 1-2 z 2
Tytuł:
On some inverse problem for bi-parabolic equation with observed data in L$\text{}^{p}$ spaces
Autorzy:
Tuan, Nguyen Huy
Powiązania:
https://bibliotekanauki.pl/articles/2048891.pdf
Data publikacji:
2022
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
biparabolic equation
Fourier truncation method
inverse source parabolic
inverse initial problem
regularization
Sobolev embeddings
Opis:
The bi-parabolic equation has many practical significance in the field of heat transfer. The objective of the paper is to provide a regularized problem for bi-parabolic equation when the observed data are obtained in $L^{p}$. We are interested in looking at three types of inverse problems. Regularization results in the L$\text{}^{2}$ space appears in many related papers, but the survey results are rare in $L^{p}$, p≠2. The first problem related to the inverse source problem when the source function has split form. For this problem, we introduce the error between the Fourier regularized solution and the exact solution in $L^{p}$ spaces. For the inverse initial problem for both linear and nonlinear cases, we applied the Fourier series truncation method. Under the terminal input data observed in $L^{p}$, we obtain the approximated solution also in the space $L^{p}$. Under some reasonable smoothness assumptions of the exact solution, the error between the the regularized solution and the exact solution are derived in the space $L^{p}$. This paper seems to generalize to previous results for bi-parabolic equation on this direction.
Źródło:
Opuscula Mathematica; 2022, 42, 2; 305-335
1232-9274
2300-6919
Pojawia się w:
Opuscula Mathematica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Difference problems generated by infinite systems of nonlinear parabolic functional differential equations with the Robin conditions
Autorzy:
Czernous, W.
Jaruszewska-Walczak, D.
Powiązania:
https://bibliotekanauki.pl/articles/255694.pdf
Data publikacji:
2014
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
nonlinear parabolic equations
functional differential equations
infinite systems
Volterra type operators
nonlinear estimates of Perron type
truncation methods
Opis:
We consider the classical solutions of mixed problems for infinite, countable systems of parabolic functional differential equations. Difference methods of two types are constructed and convergence theorems are proved. In the first type, we approximate the exact solutions by solutions of infinite difference systems. Methods of second type are truncation of the infinite difference system, so that the resulting difference problem is finite and practically solvable. The proof of stability is based on a comparison technique with nonlinear estimates of the Perron type for the given functions. The comparison system is infinite. Parabolic problems with deviated variables and integro-differential problems can be obtained from the general model by specifying the given operators.
Źródło:
Opuscula Mathematica; 2014, 34, 2; 311-326
1232-9274
2300-6919
Pojawia się w:
Opuscula Mathematica
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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