Solutions of Sign-Changing Fractional Differential Equation with the Fractional Derivatives

الملخص EN

We study the singular fractional-order boundary-value problem with a sign-changing nonlinear term -?αx(t)=p(t)f(t,x(t),?μ1x(t),?μ2x(t),…,?μn-1x(t)),0

Some new results on the existence of nontrivial solutions for the above problem are obtained by computing the topological degree of a completely continuous field.