2 papers
math.FA2023
Counterexamples in isometric theory of symmetric and greedy bases
Fernando Albiac, Jose L. Ansorena, Oscar Blasco +2
We continue the study initiated in [F. Albiac and P. Wojtaszczyk, Characterization of -greedy bases, J. Approx. Theory 138 (2006), no. 1, 65-86] of properties related to greedy…
math.CO2023
Schreier Multisets and the -step Fibonacci Sequences
Hung Viet Chu, Nurettin Irmak, Steven J. Miller +2
Inspired by the surprising relationship (due to A. Bird) between Schreier sets and the Fibonacci sequence, we introduce Schreier multisets and connect these multisets with the -…