Abstract
What structure can be placed on the burgeoning field of fractional calculus with assorted kernel functions? This question has been addressed by the introduction of various general kernels, none of which has both a fractional order parameter and a clear inversion relation. Here, we use ideas from abstract algebra to construct families of fractional integral and derivative operators, parametrised by a real or complex variable playing the role of the order. These have the typical behaviour expected of fractional calculus operators, such as semigroup and inversion relations, which allow fractional differential equations to be solved using operational calculus in this general setting, including all types of fractional calculus with semigroup properties as special cases.
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Fernandez, A. Abstract Algebraic Construction in Fractional Calculus: Parametrised Families with Semigroup Properties. Complex Anal. Oper. Theory 18, 50 (2024). https://doi.org/10.1007/s11785-024-01493-6
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DOI: https://doi.org/10.1007/s11785-024-01493-6
Keywords
- Fractional integrals
- Fractional derivatives
- Semigroups
- Field of fractions
- Operational calculus
- Mikusiński’s operational calculus