Nonlocal conditions for lower semicontinuous parabolic inclusions.
Boucherif, Abdelkader (2011)
Advances in Difference Equations [electronic only]
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Boucherif, Abdelkader (2011)
Advances in Difference Equations [electronic only]
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Boundary Value Problems [electronic only]
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Zejia, Wang, Jingxue, Yin (2003)
Electronic Journal of Qualitative Theory of Differential Equations [electronic only]
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Han, Pigong (2005)
Journal of Inequalities and Applications [electronic only]
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Mujaković, Nermina (2008)
Boundary Value Problems [electronic only]
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Ádám Besenyei (2010)
Mathematica Bohemica
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Two models of reaction-diffusion are presented: a non-Fickian diffusion model described by a system of a parabolic PDE and a first order ODE, further, porosity-mineralogy changes in porous medium which is modelled by a system consisting of an ODE, a parabolic and an elliptic equation. Existence of weak solutions is shown by the Schauder fixed point theorem combined with the theory of monotone type operators.
Benchohra, M., Hamani, S., Henderson, J. (2007)
Electronic Journal of Qualitative Theory of Differential Equations [electronic only]
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Ahmad, Bashir, Ntouyas, Sotiris K. (2011)
Abstract and Applied Analysis
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Wang, Yulan, Xiang, Zhaoyin (2009)
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Tiziana Cardinali, Nikolaos S. Papageorgiou (2000)
Czechoslovak Mathematical Journal
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In this paper we study nonlinear parabolic equations using the method of upper and lower solutions. Using truncation and penalization techniques and results from the theory of operators of monotone type, we prove the existence of a periodic solution between an upper and a lower solution. Then with some monotonicity conditions we prove the existence of extremal solutions in the order interval defined by an upper and a lower solution. Finally we consider problems with discontinuities and...