S. Atslega.  
Comparison of the Dirichlet and Neumann boundary value problems for a certain equation with period annuli
 

We consider the specific second order autonomous equation which has multiple period annuli (connected continua of periodic solutions). These period annuli contain also solutions of the Dirichlet and Neumann problem. We compute them and give theoretical explanation of multiplicity of solutions. Comparison of both problems have been made.

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