ACTA MATHEMATICA UNIVERSITATIS COMENIANAE

Vol. 69,   2   (2000)
pp.   173-181

ON SECOND ORDER DIFFERENTIAL INCLUSIONS WITH PERIODIC BOUNDARY CONDITIONS
M. BENCHOHRA and S. K. NTOUYAS


Abstract.  In this paper a fixed point theorem for condensing maps combined with upper and lower solutions are used to investigate the existence of solutions for second order differential inclusions with periodic boundary conditions.

AMS subject classification.  34 A60, 34 B15
Keywords

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