Citation: | Caixia Guo, Jianmin Guo, Shugui Kang, Huapeng Li. SMALLEST EIGENVALUES AND THE EXISTENCE RESULT FOR THE BOUNDARY VALUE PROBLEM OF NONLINEAR FRACTIONAL DIFFERENTIAL SYSTEMS[J]. Journal of Applied Analysis & Computation, 2023, 13(4): 2074-2088. doi: 10.11948/20220365 |
In this paper, we first discuss the existence of smallest eigenvalues of fractional boundary value problems. Then we consider the existence of at least one positive solution for a class of nonlinear boundary value problem of fractional differential system. Compared with the existing methods, our analysis relies on the fixed point index theorem in a Cartesian product of two cones. We further construct two special operators to compute straightforwardly the fixed point index in a suitable cone. Finally, we present an illustrative example to support our main result.
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