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Axioms 2015, 4(4), 530-553; doi:10.3390/axioms4040530

An Overview of the Pathway Idea and Its Applications in Statistical and Physical Sciences

1
St.Thomas’ College, Thrissur P.O., Kerala 680001, India
2
St. Gregorios College, Pulamon P.O., Kottarakara, Kerala 691531, India
3
Kuriakose Elias College, Mannanam P.O., Kottayam, Kerala 686561, India
*
Author to whom correspondence should be addressed.
Academic Editor: Hans J. Haubold
Received: 18 October 2015 / Revised: 4 December 2015 / Accepted: 7 December 2015 / Published: 19 December 2015
View Full-Text   |   Download PDF [565 KB, uploaded 19 December 2015]   |  

Abstract

Pathway idea is a switching mechanism by which one can go from one functional form to another, and to yet another. It is shown that through a parameter α, called the pathway parameter, one can connect generalized type-1 beta family of densities, generalized type-2 beta family of densities, and generalized gamma family of densities, in the scalar as well as the matrix cases, also in the real and complex domains. It is shown that when the model is applied to physical situations then the current hot topics of Tsallis statistics and superstatistics in statistical mechanics become special cases of the pathway model, and the model is capable of capturing many stable situations as well as the unstable or chaotic neighborhoods of the stable situations and transitional stages. The pathway model is shown to be connected to generalized information measures or entropies, power law, likelihood ratio criterion or λ - criterion in multivariate statistical analysis, generalized Dirichlet densities, fractional calculus, Mittag-Leffler stochastic process, Krätzel integral in applied analysis, and many other topics in different disciplines. The pathway model enables one to extend the current results on quadratic and bilinear forms, when the samples come from Gaussian populations, to wider classes of populations. View Full-Text
Keywords: pathway model; entropy measure; superstatistics; Tsallis statistics; beta family; generalized gamma; Dirichlet densities; λ-criterion; H- function; quadratic forms pathway model; entropy measure; superstatistics; Tsallis statistics; beta family; generalized gamma; Dirichlet densities; λ-criterion; H- function; quadratic forms
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Sebastian, N.; S. Nair, S.; P. Joseph, D. An Overview of the Pathway Idea and Its Applications in Statistical and Physical Sciences. Axioms 2015, 4, 530-553.

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