Mininal S_beta-open sets and Maximal S_beta-closed sets in topological spaces

Ardoon Jongrak


In this work, new classes of sets called minimal $S_{\beta}$ -open set and maximal $S_{\beta}$ -closed set in topological spaces which were subclasses of

$S_{\beta}$ -open and $S_{\beta}$ -closed sets respectively are introduced. We proved that the complement of minimal $S_{\beta}$ -open set was maximal $S_{\beta}$ -closed set. Some properties of the new concept of both sets were studied.

Full Text: PDF


  • There are currently no refbacks.

The Thai Journal of Mathematics organized and supported by The Mathematical Association of Thailand and Thailand Research Council and the Center for Promotion of Mathematical Research of Thailand (CEPMART).

Copyright 2020 by the Mathematical Association of Thailand.

All rights reserve. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, without the prior permission of the Mathematical Association of Thailand.

|ISSN 1686-0209|