Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Jean Velin"'
Publikováno v:
Applied Sciences, Vol 13, Iss 20, p 11600 (2023)
This article concerns the improvement of digital image quality using mathematical tools such as nonlinear partial differential operators. In this paper, to perform smoothing on digital images, we propose to use the p(x)-Laplacian operator. Its smooth
Externí odkaz:
https://doaj.org/article/aff3cafe72164a6daf5c4b0ab551920f
Autor:
Ouarda Saifia, Jean Velin
Publikováno v:
Electronic Journal of Differential Equations, Vol 2014, Iss 163,, Pp 1-22 (2014)
In this article, we establish the existence of nontrivial solutions by employing the fibering method introduced by Pohozaev. We also generalize the well-known Pohozaev and Pucci-Serrin identities to a (p(x),q(x))-Laplacian system. A nonexistence r
Externí odkaz:
https://doaj.org/article/ead7d742e99744a68d2368ede5af9d39
Publikováno v:
2022 15th International Congress on Image and Signal Processing, BioMedical Engineering and Informatics (CISP-BMEI).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::01dbf7000b1a67543a32600ebec18612
https://doi.org/10.1109/cisp-bmei56279.2022.9979882
https://doi.org/10.1109/cisp-bmei56279.2022.9979882
Publikováno v:
Opuscula Mathematica, Vol 44, Iss 1, Pp 105-134 (2023)
The paper deals with the existence of solutions for quasilinear elliptic systems involving singular and convection terms with variable exponents. The approach combines the sub-supersolutions method and Schauder's fixed point theorem.
Externí odkaz:
https://doaj.org/article/f878db15b58345ea8b03e9b06076789c
Publikováno v:
Comptes Rendus de l'Académie des Sciences - Series I - Mathematics. 330:801-806
Resume On traite du controle de systemes distribues a donnees manquantes d'apres la notion de controle sans regrets utilisee par J.-L. Lions [2]. Au controle sans regrets, on associe comme dans J.-L. Lions [4], une suite de controles a moindres regre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::797ba0d0628d6ef30c4ab07b05fb03d9
https://doi.org/10.1016/s0764-4442(00)00263-9
https://doi.org/10.1016/s0764-4442(00)00263-9
Autor:
Jean Velin
In this paper, we presente some existence results concerning in a typical (p(x), q(x))- gradient elliptic system with changing sign. We construct a pair of sub-super solutions. The existence of a positive and bounded solution involves.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______645::094835307c72ac467c0716b6de00d6e0
http://www2.univ-ag.fr/RePEc/DT/DT2013-15_Velin.pdf
http://www2.univ-ag.fr/RePEc/DT/DT2013-15_Velin.pdf
Autor:
Warda Saifia, Jean Velin
In view of the fibring method, we prove the existence of nontrivial solutions. Generalization of the well-known Pohozaev and Pucci-Serrin idendities and some nonexistence results for Dirichlet problem involving the (p(x), q(x))-Laplacian system are o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______645::4e4882a162e48df616eb684c237aacb1
http://www2.univ-ag.fr/RePEc/DT/DT2013-11_Saifia_Velin.pdf
http://www2.univ-ag.fr/RePEc/DT/DT2013-11_Saifia_Velin.pdf
Autor:
Abdelkrim Moussaoui, Jean Vélin
Publikováno v:
Electronic Journal of Qualitative Theory of Differential Equations, Vol 2019, Iss 66, Pp 1-22 (2019)
In this article, we deal with the first eigenvalue for a nonlinear gradient type elliptic system involving variable exponents growth conditions. Positivity, boundedness and regularity of associated eigenfunctions for auxiliaries systems are establish
Externí odkaz:
https://doaj.org/article/9da954af13fb4b019a7f6da3f9f80105
Publikováno v:
Topol. Methods Nonlinear Anal. 17, no. 2 (2001), 307-319
We consider a nonlinear model for age-dependent population dynamics subject to a density dependent factor which regulates the selection of newborn at age zero. The initial-boundary value problem is studied using a vanishing viscosity method (in the a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6e2bd32ade8fc50382c9837173e93411
https://doi.org/10.12775/tmna.2001.018
https://doi.org/10.12775/tmna.2001.018