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New Positive Solutions of Nonlinear Elliptic PDEs

2020-7-15
Inc, Mustafa
Bouteraa, Noureddine
Akinlar, Mehmet Ali
Benaicha, Slimane
Chu, Yu-Ming
Weber, Gerhard-Wilhelm
Almohsen, Bandar
We are concerned with positive solutions of two types of nonlinear elliptic boundary value problems (BVPs). We present conditions for existence, uniqueness and multiple positive solutions of a first type of elliptic BVPs. For a second type of elliptic BVPs, we obtain conditions for existence and uniqueness of positive global solutions. We employ mathematical tools including strictly upper (SU) and strictly lower (SL) solutions, iterative sequence method and Amann theorem. We present our research findings in new original theorems. Finally, we summarize and indicate areas of future study and possible applications of the research work.