Fractional-Modified Bessel Function of the First Kind of Integer Order

The modified Bessel function (MBF) of the first kind is a fundamental special function in mathematics with applications in a large number of areas. When the order of this function is integer, it has an integral representation which includes the exponential of the cosine function. Here, we generalize...

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Bibliographic Details
Authors: Martín, Andrés, Estrada, Ernesto
Format: article
Status:Published version
Publication Date:2023
Country:España
Institution:Consejo Superior de Investigaciones Científicas (CSIC)
Repository:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/351638
Online Access:http://hdl.handle.net/10261/351638
https://api.elsevier.com/content/abstract/scopus_id/85152786375
Access Level:Open access
Keyword:Riemann–Liouville integral
Caputo derivative
Communicability in graphs
Cycles
Estrada index
Fractional calculus
Mittag–Leffler function
Modified Bessel functions
Paths
Power-series
Description
Summary:The modified Bessel function (MBF) of the first kind is a fundamental special function in mathematics with applications in a large number of areas. When the order of this function is integer, it has an integral representation which includes the exponential of the cosine function. Here, we generalize this MBF to include a fractional parameter, such that the exponential in the previously mentioned integral is replaced by a Mittag–Leffler function. The necessity for this generalization arises from a problem of communication in networks. We find the power series representation of the fractional MBF of the first kind as well as some differential properties. We give some examples of its utility in graph/networks analysis and mention some fundamental open problems for further investigation.