English

On mutually inverse transforms of functions on a half-line

Classical Analysis and ODEs 2021-05-21 v1 Mathematical Physics Functional Analysis Metric Geometry math.MP Optimization and Control

Abstract

Two transforms of functions on a half-line are considered. It is proved that their composition gives a concave majorant for every nonnegative function. In particular, this composition is the identity transform on the class of nonnegative concave functions. Applications of this result to some problems of mathematical physics are indicated. Several open questions are formulated.

Keywords

Cite

@article{arxiv.2105.09709,
  title  = {On mutually inverse transforms of functions on a half-line},
  author = {V. Yu. Protasov and M. E. Shirokov},
  journal= {arXiv preprint arXiv:2105.09709},
  year   = {2021}
}

Comments

7 pages, any comments are welcome

R2 v1 2026-06-24T02:18:00.992Z