3 citations · 4 across the 3 of their papers we have counts for
3 papers
math.FA2026
On the independence of axioms for measures of non-compactness
Jerzy Grzybowski, Piotr Kasprzak, Piotr Maćkowiak
We investigate the independence of the axioms in the Banaś--Goebel approach to the theory of measures of non-compactness. We present a complete answer for four of the five axioms.…
math.FA2021★ 3 cited
Order Cancellation Law in a Semigroup of Closed Convex Sets
Jerzy Grzybowski, Hubert Przybycien
In this paper generalize Robinson's version of an order cancellation law for subsets of vector spaces in which we cancel by unbounded sets. We introduce the notion of weakly narrow…
math.FA2020★ 1 cited
Minimal pairs of convex sets which share a recession cone
Jerzy Grzybowski, Ryszard Urbański
Robinson introduced a quotient space of pairs of convex sets which share their recession cone. In this paper minimal pairs of unbounded convex sets, i.e. minimal representations of…