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https://www.impan.pl/pl/wydawnictwa/czasopisma-i-serie-wydawnicze/studia-mathematica/all/88/1/105775/pl/wydawnictwa/czasopisma-i-serie-wydawnicze/studia-mathematica/all/pl/wydawnictwa/czasopisma-i-serie-wydawnicze/studia-mathematica/all/88 Comparison of joint spectra for certain classes of commuting operatorsAll comparisonjointspectracertainclasses https://www.impan.pl/en/publishing-house/journals-and-series/colloquium-mathematicum/all/120/1/87606/on-multilinear-generalizations-of-the-concept-of-nuclear-operators On multilinear generalizations of the concept of nuclear operatorsAll This paper introduces the class of Cohen $p$-nuclear $m$-linear operators between Banach spaces. A characterization in terms of Pietsch's domination theorem is... of thegeneralizationsconceptnuclear https://www.impan.pl/en/publishing-house/journals-and-series/colloquium-mathematicum/all/46/1/103718/on-a-question-of-fremlin-concerning-order-bounded-and-regular-operators On a question of Fremlin concerning order bounded and regular operatorsAll on aquestionfremlin