ODE Methods in Non-Local Equations

ODE Methods in Non-Local Equations

Year:    2020

Author:    Weiwei Ao, Hardy Chan, Azahara DelaTorre, Marco A. Fontelos, María del Mar González, Juncheng Wei

Journal of Mathematical Study, Vol. 53 (2020), Iss. 4 : pp. 370–401

Abstract

Non-local equations cannot be treated using classical ODE theorems. Nevertheless, several new methods have been introduced in the non-local gluing scheme of our previous article; we survey and improve those, and present new applications as well. First, from the explicit symbol of the conformal fractional Laplacian, a variation of constants formula is obtained for fractional Hardy operators. We thus develop, in addition to a suitable extension in the spirit of Caffarelli–Silvestre, an equivalent formulation as an infinite system of second order constant coefficient ODEs. Classical ODE quantities like the Hamiltonian and Wrońskian may then be utilized. As applications, we obtain a Frobenius theorem and establish new Pohožaev identities. We also give a detailed proof for the non-degeneracy of the fast-decay singular solution of the fractional Lane–Emden equation.

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Journal Article Details

Publisher Name:    Global Science Press

Language:    English

DOI:    https://doi.org/10.4208/jms.v53n4.20.01

Journal of Mathematical Study, Vol. 53 (2020), Iss. 4 : pp. 370–401

Published online:    2020-01

AMS Subject Headings:   

Copyright:    COPYRIGHT: © Global Science Press

Pages:    32

Keywords:    ODE methods non-local equations fractional Hardy operators Frobenius theorem.

Author Details

Weiwei Ao

Hardy Chan

Azahara DelaTorre

Marco A. Fontelos

María del Mar González

Juncheng Wei

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