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Proceedings of the American Mathematical Society Series B

Published by the American Mathematical Society since 2014, this gold open access, electronic-only journal is devoted to shorter research articles in all areas of pure and applied mathematics.

ISSN 2330-1511

The 2020 MCQ for Proceedings of the American Mathematical Society Series B is 0.95.

What is MCQ? The Mathematical Citation Quotient (MCQ) measures journal impact by looking at citations over a five-year period. Subscribers to MathSciNet may click through for more detailed information.

 

Nonexistence and parameter range estimates for convolution differential equations
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by Christopher S. Goodrich HTML | PDF
Proc. Amer. Math. Soc. Ser. B 9 (2022), 254-265

Abstract:

We consider nonlocal differential equations with convolution coefficients of the form \begin{equation} -M\Big (\big (a*u^q\big )(1)\Big )u''(t)=\lambda f\big (t,u(t)\big ),t\in (0,1),\notag \end{equation} and we demonstrate an explicit range of $\lambda$ for which this problem, subject to given boundary data, will not admit a nontrivial positive solution; if $a\equiv 1$, then the model case \begin{equation} -M\Big (\Vert u\Vert _{L^q(0,1)}^{q}\Big )u''(t)=\lambda f\big (t,u(t)\big ),t\in (0,1)\notag \end{equation} is obtained. The range of $\lambda$ is calculable in terms of initial data, and our results allow for a variety of kernels, $a$, to be utilized, including, for example, those leading to a fractional integral coefficient of Riemann-Liouville type. Two examples are provided in order to illustrate the application of the result.
References
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Additional Information
  • Christopher S. Goodrich
  • Affiliation: School of Mathematics and Statistics, UNSW Sydney, Sydney, New South Wales 2052, Australia
  • MR Author ID: 904842
  • ORCID: 0000-0003-2058-216X
  • Email: c.goodrich@unsw.edu.au
  • Received by editor(s): February 14, 2022
  • Received by editor(s) in revised form: April 8, 2022
  • Published electronically: May 16, 2022

  • Dedicated: This paper is dedicated to the memory of my brother Ben Goodrich (8 November 1988–25 February 2022), who was taken from this life much too soon
  • Communicated by: Wenxian Shen
  • © Copyright 2022 by the author under Creative Commons Attribution-NonCommercial 3.0 License (CC BY NC 3.0)
  • Journal: Proc. Amer. Math. Soc. Ser. B 9 (2022), 254-265
  • MSC (2020): Primary 33B15, 34B10, 34B18, 42A85, 44A35; Secondary 26A33, 47H30
  • DOI: https://doi.org/10.1090/bproc/130
  • MathSciNet review: 4422437