scholarly journals Three critical points theorem and its application to quasilinear elliptic equations

2011 ◽  
Vol 375 (2) ◽  
pp. 566-578 ◽  
Author(s):  
Zhouxin Li ◽  
Yaotian Shen



2018 ◽  
Vol 24 (2) ◽  
pp. 849-858 ◽  
Author(s):  
Giuseppe Riey ◽  
Berardino Sciunzi

We study the summability up to the boundary of the second derivatives of solutions to a class of Dirichlet boundary value problems involving the p-Laplace operator. Our results are meaningful for the cases when the Hopf’s Lemma cannot be applied to ensure that there are no critical points of the solution on the boundary of the domain.





2006 ◽  
Vol 229 (1) ◽  
pp. 367-388 ◽  
Author(s):  
Lucio Boccardo ◽  
Maria Michaela Porzio


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