Abstract
Let
S be an ideal of subsets of a metric space
⟨X,d⟩. A net of subsets
⟨Aλ⟩ of
X is called
S-convergent to a subset
A of
X if for each
S∈S and each
ε>0, we have eventually
A∩S⊆Aλε and Aλ∩S⊆Aε. We identify necessary and sufficient conditions for this convergence to be admissible and topological on the power set of
X. We show that
S-convergence is compatible with a pseudometrizable topology if and only if
S has a countable base and each member of
S has an
ε-enlargement that is again in
S. Further, in the case that the ideal is a bornology, we show that
S-convergence when pseudometrizable is Attouch-Wets convergence with respect to an equivalent metric.
Author information
Contact details are reproduced from the original publication and may be historical.

Gerald Beer
Dept. of Mathematics, California State University, 5151 State University Drive, Los Angeles, CA 90032, U.S.A.
gbeer@cslanet.calstatela.edu
Sandro Levi
Dip. di Matematica e Applicazioni, Università di Milano-Bicocca, Via Cozzi 53, 20125 Milano, Italy
sandro.levi@unimib.itSuggested citation
G. Beer, S. Levi. “Pseudometrizable Bornological Convergence is Attouch-Wets Convergence.” Journal of Convex Analysis 15 (2008), No. 2, 439–453. https://doi.org/10.68381/jca15031
Published by Heldermann Verlag, 2008. Rights now held by Banach Press.