The Inverse Problem of Simultaneous Determination of the Two Time-Dependent Lower Coefficients in a Nondivergent Parabolic Equation in the Plane
Matematičeskie zametki, Tome 107 (2020) no. 1, pp. 74-86.

Voir la notice de l'article provenant de la source Math-Net.Ru

We prove existence and uniqueness theorems for the solution of the inverse problem of simultaneous determination of the $t$-dependent coefficients of $u$ and $u_x$ in a nondivergent parabolic equation with two independent variables from integral observation of $x$. Estimates of the maxima of the moduli of these coefficients with constants explicitly expressed in terms of the input data of the problem are given. An example of an inverse problem to which the proved theorems apply is presented.
Keywords: inverse problem, integral observation.
Mots-clés : parabolic equations
@article{MZM_2020_107_1_a6,
     author = {V. L. Kamynin},
     title = {The {Inverse} {Problem} of {Simultaneous} {Determination} of the {Two} {Time-Dependent} {Lower} {Coefficients} in a {Nondivergent} {Parabolic} {Equation} in the {Plane}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {74--86},
     publisher = {mathdoc},
     volume = {107},
     number = {1},
     year = {2020},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2020_107_1_a6/}
}
TY  - JOUR
AU  - V. L. Kamynin
TI  - The Inverse Problem of Simultaneous Determination of the Two Time-Dependent Lower Coefficients in a Nondivergent Parabolic Equation in the Plane
JO  - Matematičeskie zametki
PY  - 2020
SP  - 74
EP  - 86
VL  - 107
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZM_2020_107_1_a6/
LA  - ru
ID  - MZM_2020_107_1_a6
ER  - 
%0 Journal Article
%A V. L. Kamynin
%T The Inverse Problem of Simultaneous Determination of the Two Time-Dependent Lower Coefficients in a Nondivergent Parabolic Equation in the Plane
%J Matematičeskie zametki
%D 2020
%P 74-86
%V 107
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MZM_2020_107_1_a6/
%G ru
%F MZM_2020_107_1_a6
V. L. Kamynin. The Inverse Problem of Simultaneous Determination of the Two Time-Dependent Lower Coefficients in a Nondivergent Parabolic Equation in the Plane. Matematičeskie zametki, Tome 107 (2020) no. 1, pp. 74-86. http://geodesic.mathdoc.fr/item/MZM_2020_107_1_a6/

[1] N. V. Muzylev, “O edinstvennosti resheniya odnoi obratnoi zadachi nelineinoi teploprovodnosti”, Zh. vychisl. matem. i matem. fiz., 25:9 (1985), 1346–1352 | MR | Zbl

[2] N. I. Ivanchov, “Ob obratnoi zadache odnovremennogo opredeleniya koeffitsientov teploprovodnosti i teploemkosti”, Sib. matem. zhurn., 35:3 (1994), 612–621 | MR | Zbl

[3] Yu. E. Anikonov, Yu. Ya. Belov, “Determining two unknown coefficients of parabolic type equations”, J. Inverse Ill-Posed Probl., 9:5 (2001), 469–487 | DOI | MR | Zbl

[4] M. I. Ivanchov, N. V. Pabyrivs'ka, “Simultaneous determination of two coefficients of a parabolic equation in the case of nonlocal and integral conditions”, Ukrainian Math. J., 53:5 (2001), 674–684 | DOI | MR | Zbl

[5] N. I. Ivanchov, N. V. Pabyrivska, “Ob opredelenii dvukh zavisyaschikh ot vremeni koeffitsientov v parabolicheskom uravnenii”, Sib. matem. zhurn., 43:2 (2002), 406–413 | MR | Zbl

[6] A. I. Kozhanov, “An inverse problem with unknown coefficient and right-hand side for parabolic equation. II”, J. Inverse Ill-Posed Probl., 11:5 (2003), 505–522 | DOI | MR | Zbl

[7] Yu. Ya. Belov, S. V. Polyntseva, “Ob odnoi obratnoi zadache identifikatsii dvukh koeffitsientov mnogomernogo parabolicheskogo uravneniya”, Dokl. AN, 396:5 (2004), 583–586 | MR | Zbl

[8] M. S. Hussein, D. Lesnic, M. I. Ivanchov, “Simultaneous determination of time-dependent coefficients in the heat equation”, Comput. Math. Appl., 67:5 (2014), 1065–1091 | DOI | MR | Zbl

[9] V. L. Kamynin, A. B. Kostin, “Obratnaya zadacha opredeleniya $n$ koeffitsientov pri mladshikh proizvodnykh v parabolicheskom uravnenii”, Differents. uravneniya, 50:4 (2014), 480–491 | DOI | Zbl

[10] M. J. Huntul, D. Lesnic, M. S. Hussein, “Reconstraction of time-dependent coefficients from heat moments”, Appl. Math. Comput., 301 (2017), 233–253 | DOI | MR | Zbl

[11] M. S. Hussein, D. Lesnic, M. I. Ivanchov, H. A. Snitko, “Multiply time-dependent coefficient identification thermal problems with a free boundary”, Appl. Numer. Math., 99 (2016), 24–50 | DOI | MR | Zbl

[12] V. L. Kamynin, “Obratnaya zadacha odnovremennogo opredeleniya pravoi chasti i koeffitsienta pered mladshei proizvodnoi v parabolicheskom uravnenii na ploskosti”, Differents. uravneniya, 50:6 (2014), 795–806 | DOI | Zbl

[13] V. L. Kamynin, “Inverse problems of simultaneous determination of the time-dependent right-hand side term and the coefficient in a parabolic equation”, Finite Difference Methods, Theory and Applications,, Lecture Notes in Comput. Sci., 9045, Springer, Cham, 2015, 225–232 | MR | Zbl

[14] V. L. Kamynin, “Obratnaya zadacha odnovremennogo opredeleniya pravoi chasti i mladshego koeffitsienta v parabolicheskom uravnenii so mnogimi prostranstvennymi peremennymi”, Matem. zametki, 97:3 (2015), 368–381 | DOI | MR | Zbl

[15] V. L. Kamynin, “Obratnaya zadacha odnovremennogo opredeleniya dvukh zavisyaschikh ot prostranstvennoi peremennoi mladshikh koeffitsientov v parabolicheskom uravnenii”, Matem. zametki, 106:2 (2019), 248–261 | DOI

[16] S. N. Kruzhkov, “Kvazilineinye parabolicheskie uravneniya vtorogo poryadka so mnogimi nezavisimymi peremennymi”, UMN, 16:5 (101) (1961), 115–155 | MR | Zbl

[17] O. A. Ladyzhenskaya, V. A. Solonnikov, N. N. Uraltseva, Lineinye i kvazilineinye uravneniya parabolicheskogo tipa, Nauka, M., 1967 | MR | Zbl

[18] S. N. Kruzhkov, Nelineinye uravneniya s chastnymi proizvodnymi, Ch. 1, Izd-vo Mosk. un-ta, M., 1969

[19] L. A. Lyusternik, V. I. Sobolev, Kratkii kurs funktsionalnogo analiza, Vysshaya shkola, M., 1982 | MR | Zbl