Author Details

Rashwan, Rashwan Ahmed, Department of Mathematics, Faculty of Science, Assiut University, Assiut 71516, Egypt., Egypt



Copyright 2019 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|