English

Product formulas in functional calculi for sectorial operators

Functional Analysis 2014-09-30 v2

Abstract

We study the product formula (fg)(A)=f(A)g(A)(fg)(A) = f(A)g(A) in the framework of (unbounded) functional calculus of sectorial operators AA. We give an abstract result, and, as corollaries, we obtain new product formulas for the holomorphic functional calculus, an extended Stieltjes functional calculus and an extended Hille-Phillips functional calculus. Our results generalise previous work of Hirsch, Martinez and Sanz, and Schilling.

Keywords

Cite

@article{arxiv.1309.0318,
  title  = {Product formulas in functional calculi for sectorial operators},
  author = {Charles Batty and Alexander Gomilko and Yuri Tomilov},
  journal= {arXiv preprint arXiv:1309.0318},
  year   = {2014}
}

Comments

This is the authors accepted manuscript for a paper being published in Mathematische Zeitschrift. The final publication is available at Springer via http://dx.doi.org/10.1007/s00209-014-1378-3

R2 v1 2026-06-22T01:18:53.544Z