2010/01/29 by Aicke Hinrichs, Albrecht Pietsch · 2 citations
Mathematics · #Advanced Harmonic Analysis Research #Aesthetics #Algebra over a field #Algebraic and Geometric Analysis #Algorithm #Combinatorics #Fourier transform #Identity (music) #Mathematical Analysis and Transform Methods #Mathematical analysis #Mathematics #Multiplication (music) #Pure mathematics #State (computer science)
paper · doi:10.1002/mana.200910128
openalex publication_date 2010/01/29 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/02
Abstract The by now classical theory of p ‐nuclear operators with 0 < p ≤ 1 was founded in Grothendieck's thesis (1953). Since that time only little progress has been achieved. This article describes the present state of the art. We improve Grothendieck's multiplication theorem, characterize the p ‐integral operators, and give a long list of challenging open problems. The abstract theory is illustrated by considering the identity map and the discrete Fourier transform from l a n onto l b n with 1 ≤ a , b ≤ ∞ (© 2010 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)