4 papers
Wiener-Pitt sets for compact Abelian groups
Przemysław Ohrysko, Tom Sanders, Michał Wojciechowski
Suppose that is a compact Hausdorff Abelian group. We say is strongly continuous if for any and any that is closed and of infinite…
B-splines approximate the Gaussian density and Hermite functions in Schwartz seminorms
Maciej Rzeszut, Michał Wojciechowski
We prove that B-splines with knots satisfying assumptions of the Berry-Esseen Theorem, which correspond directly to the volumes of sections of the standard simplex, tend to the Gau…
Looking for a continuous version of Bennett--Carl theorem
Sergey V. Astashkin, Karol Leśnik, Michał Wojciechowski
We study absolute summability of inclusions of r.i. function spaces. It appears that such properties are closely related, or even determined by absolute summability of inclusions o…
On the relations between Auerbach or almost Auberbach Markushevich systems and Schauder bases
Beata Randrianantoanina, Michał Wojciechowski, Pavel Zatitskii
We establish that the summability of the series is the necessary and sufficient criterion ensuring that every Markushevich basis in a separa…