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    STUDIA MATHEMATICA - Issue no. 2 / 2021  
         
  Article:   A STUDY OF EXISTENCE AND MULTIPLICITY OF POSITIVE SOLUTIONS FOR NONLINEAR FRACTIONAL DIFFERENTIAL EQUATIONS WITH NONLOCAL BOUNDARY CONDITIONS.

Authors:  NOUREDDINE BOUTERAA, SLIMANE BENAICHA.
 
       
         
  Abstract:  
DOI: 10.24193/subbmath.2021.2.12

Published Online: 2021-06-15
Published Print: 2021-06-30
pp. 361-380

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This paper deals with the existence, uniqueness and the multiplicity of solutions for a class of fractional differential equations boundary value problems involving three-point nonlocal Riemann-Liouville fractional derivative and integral boundary conditions. Our results are based on some well-known tools of fixed point theory such as Banach contraction principle, fixed point index theory and the Leggett-Williams fixed point theorem. As applications, some examples are presented at the end to illustrate the main results.

Mathematics Subject Classification (2010): 34A08, 26A33, 34A60.

Keywords: Positive solution, fractional differential equations, existence, multiplicity, nonlocal boundary, Green’s function.
 
         
     
         
         
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