scholarly journals An abstract existence theorem at resonance

1977 ◽  
Vol 63 (2) ◽  
pp. 221-221 ◽  
Author(s):  
L. Cesari ◽  
R. Kannan
1998 ◽  
Vol 145 (2) ◽  
pp. 274-294 ◽  
Author(s):  
Shiwang Ma ◽  
Zhicheng Wang ◽  
Jianshe Yu

2001 ◽  
Vol 63 (1) ◽  
pp. 1-14 ◽  
Author(s):  
Leszek Gasiński ◽  
Nikolaos S. Papageorgiou

We consider a nonlinear hemivariational inequality with the p-Laplacian at resonance. Using an extension of the nonsmooth mountain pass theorem of Chang, which makes use of the Cerami compactness condition, we prove the existence of a nontrivial solution. Our existence results here extends a recent theorem on resonant hemivariational inequalities, by the authors in 1999.


2002 ◽  
Vol 7 (9) ◽  
pp. 497-507
Author(s):  
Halidias Nikolaos

Using the critical point theory of Chang (1981) for locally Lipschitz functionals, we prove an existence theorem for some elliptic problems at resonance with no Carathéodory forcing term.


Author(s):  
Shengli Xie

AbstractIn this paper we prove the existence and uniqueness of mild solutions for impulsive fractional integro-differential evolution equations with infinite delay in Banach spaces. We generalize the existence theorem for integer order differential equations to the fractional order case. The results obtained here improve and generalize many known results.


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