Parabolic Differential Equations and Inequalities with Several Time Variables.
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Wolfgang Walter (1986)
Mathematische Zeitschrift
Azelmat, K., Alaoui, M.Kbiri, Meskine, D., Souissi, A. (2006)
International Journal of Mathematics and Mathematical Sciences
Aboulaich, R., Achchab, B., Meskine, D., Souissi, A. (2006)
Boundary Value Problems [electronic only]
Patricio Aviles (1983)
Manuscripta mathematica
Ricardo H. Nochetto (1989)
Numerische Mathematik
Robert Mařík (2002)
Mathematica Bohemica
In the paper the differential inequality where , , is studied. Sufficient conditions on the function are established, which guarantee nonexistence of an eventually positive solution. The generalized Riccati transformation is the main tool.
Vladimir Kondratiev, Vitali Liskevich, Vitaly Moroz (2005)
Annales de l'I.H.P. Analyse non linéaire
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