English

Eberlein almost periodic functions that are not pseudo almost periodic

Functional Analysis 2011-04-12 v1

Abstract

We construct Eberlein almost periodic functions fj:JH f_j : J \to H so that f1()||f_1(\cdot)|| is not ergodic and thus not Eberlein almost periodic and f2(.)||f_2(.)|| is Eberlein almost periodic, but f1f_1 and f2f_2 are not pseudo almost periodic, the Parseval equation for them fails, where J=\r_+ or \r and HH is a Hilbert space. This answers several questions posed by Zhang and Liu [18].

Cite

@article{arxiv.1104.1827,
  title  = {Eberlein almost periodic functions that are not pseudo almost periodic},
  author = {Bolis Basit and Hans Günzler},
  journal= {arXiv preprint arXiv:1104.1827},
  year   = {2011}
}

Comments

6 pages

R2 v1 2026-06-21T17:52:05.915Z