Unified Theory for Fractional and Entire Differential Operators

An Approach via Differential Quadruplets and Boundary Restriction Operators
2024
ISBN: 978-3-031-58355-1
Verlag: Springer International Publishing

Buch, Englisch, 496 Seiten, Format (B × H): 168 mm x 240 mm, Gewicht: 843 g

Reihe: Frontiers in Mathematics

This monograph proposes a unified theory of the calculus of fractional and standard derivatives by means of an abstract operator-theoretic approach. By highlighting the axiomatic properties shared by standard derivatives, Riemann-Liouville and Caputo derivatives, the author introduces two new classes of objects. The first class concerns differential triplets and differential quadruplets; the second concerns boundary restriction operators. Instances of  boundary restriction operators can be generalized fractional differential operators supplemented with homogeneous boundary conditions. The analysis of these operators comprises:

• The computation of adjoint operators;
• The definition of abstract boundary values;
• The solvability of equations supplemented with inhomogeneous abstract linear boundary conditions;
• The analysis of fractional inhomogeneous Dirichlet Problems.

As a result of this approach, two striking consequences are highlighted: Riemann-Liouville and Caputo operators appear to differ only by their boundary conditions; and the boundary values of functions in the domain of fractional operators are closely related to their kernel.

will appeal to researchers in analysis and those who work with fractional derivatives. It is mostly self-contained, covering the necessary background in functional analysis and fractional calculus.

Zielgruppe

Research

Autoren/Hrsg.

Rougirel, Arnaud

Fachgebiete

• Mathematik | Informatik Mathematik Mathematische Analysis Differentialrechnungen und -gleichungen
• Mathematik | Informatik Mathematik Mathematische Analysis Funktionalanalysis

Inhaltsverzeichnis

Introduction.- Background on Functional Analysis.- Background on Fractional Calculus.- Differential Triplets on Hilbert Spaces.- Differential Quadruplets on Banach Spaces.- Fractional Differential Triplets and Quadruplets on Lebesgue Spaces.- Endogenous Boundary Value Problems.- Abstract and Fractional Laplace Operators.