Semilinear fractional differential equations: global solutions, critical nonlinearities and comparison results

Alexandre Nolasco Carvalho, Paulo M. Carvalho-Neto Carvalho-Neto, Pedro Marín-Rubio, Bruno de Andrade

DOI: http://dx.doi.org/10.12775/TMNA.2015.022

Abstract


In this work we study several questions concerning to abstract fractional Cauchy problems of order $\alpha\in(0,1)$. Concretely, we analyze the existence of local mild solutions for the problem, and its possible continuation to a maximal interval of existence. The case of critical nonlinearities and corresponding regular mild solutions is also studied. Finally, by establishing some general comparison results, we apply them to conclude the global well-posedness of a fractional partial differential equation coming from heat conduction theory.

Keywords


Fractional differential equations; semilinear equations; comparison results; critical nonlinearities

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