International Journal of Mathematics and Mathematical Sciences
Volume 19 (1996), Issue 4, Pages 727-732
doi:10.1155/S0161171296001007

Strictly barrelled disks in inductive limits of quasi-(LB)-spaces

Carlos Bosch1 and Thomas E. Gilsdorf2

1Department of Mathematics I.T.A.M., Río Hondo #1, Col. Tizapán San Angel, D.F., México 01000, Mexico
2Department of Mathematics, University of North Dakota, Grand Forks 58202-8376, ND, USA

Abstract

A strictly barrelled disk B in a Hausdorff locally convex space E is a disk such that the linear span of B with the topology of the Minkowski functional of B is a strictly barrelled space. Valdivia's closed graph theorems are used to show that closed strictly barrelled disk in a quasi-(LB)-space is bounded. It is shown that a locally strictly barrelled quasi-(LB)-space is locally complete. Also, we show that a regular inductive limit of quasi-(LB)-spaces is locally complete if and only if each closed bounded disk is a strictly barrelled disk in one of the constituents.