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II Congreso Iberoamericano de Topología y sus Aplicaciones
March 20-22, 1997

Morelía, Mexico

Organizers
Salvador García-Ferreira, Daniel Juan Pineda, Sergio Macías Alvarez, Max Neumann Coto, María L. Pérez Seguí, Salvador Romaguera Bonilla, Manuel Sanchis López, Angel Tamariz Mascarúa, M. G. Tkachenko, Javier F. Trigos Arrieta

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Some results and some questions on cardinal invariants
by
Ljubiša D.R. Kočinac
University of Nis

We consider some cardinal invariants defined by using the operator of \thetan-closure and prove some cardinal inequalities for S(n)-spaces that generalize and improve some classical results on Hausdorff spaces and some new results on Urysohn spaces. We also consider some relative cardinal invariants and some questions about function spaces and cardinal functions.

Part of this work was obtained in collaboration with I. Gotchev.

Date received: March 17, 1997

Copyright © 1997 by the author(s). The author(s) of this document and the organizers of the conference have granted their consent to include this abstract in Atlas Conferences Inc. Document # caal-14.