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On positivity in algebras of tempered generalized functions

Functional Analysis 2008-08-07 v1

Abstract

An explicit counterexample shows that contrary to the situation in the special Colombeau algebra, positivity and invertibility cannot be characterized pointwise in algebras of tempered generalized functions. Further a point value characterization of the latter is refined.

Cite

@article{arxiv.0808.0789,
  title  = {On positivity in algebras of tempered generalized functions},
  author = {Eberhard Mayerhofer},
  journal= {arXiv preprint arXiv:0808.0789},
  year   = {2008}
}

Comments

9 pages, research notes