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math.FA2026
Characterized subgroups on the unit circle
Rafal Filipow, Adam kwela, Paolo Leonetti +1
Given an ideal on , a subgroup of the unit circle is said to be -characterized if there exists an integer sequence …
math.FA2025
Compactness in spaces of functions of bounded variation from ideal perspective
Jacek Gulgowski, Adam Kwela, Jacek Tryba
Recently we have presented a unified approach to two classes of Banach spaces defined by means of variations (Waterman spaces and Chanturia classes), utilizing the concepts from th…