Thai Journal of Mathematics

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Thai Journal of Mathematics (TJM) is a peer-reviewed, open access international journal publishing original research works of high standard in all areas of pure and applied mathematics.
Publication Frequency
TJM publishes one volume per year. Usually a volume consists of three issues with about 200 pages each.
Appear : April, August and December. Occasionally special issues are also published. Papers are published as soon as they are accepted.
From 2020 the journal is published every three months and four issues per year (March, June, September and December). All manuscripts are refereed under the same standards as those used by the finest-quality printed mathematical journals.  Accepted papers will be published online in their final form as a TJM formatted PDF and will be published in four issues annually.

Thai J Math.
is covered Abstracted, Reviewed and Indexeded in:
Emerging Sources Citation Index (ESCI) [Web of Science by © 2018 Clarivate Analytics]
Mathematical ReviewsMathSciNet,
Zentralblatt MATH Database,
Google Scholar and
Scopus [Elsevier]

SCImago Journal & Country Rank esci_logo_150
The SJR indicator measures the scientific influence of the average article in a journal, it expresses how central to the global scientific discussion an average article of the journal is. Cites per Doc. (2y) measures the scientific impact of an average article published in the journal, it is computed using the same formula that journal impact factor ™ (Thomson Reuters).
Call for papers

Special issue dedicated to Professor Suthep Suantai for his 60th birthday anniversary

A special issue of Thai Journal of Mathematics –Vol. 18 No.3/2020 – will be Dedicated to Professor Suthep Suantai for his 60th birthday anniversary.  Authors of papers related to areas of expertise of Professor Suthep Suantai are invited to submit a manuscript for this special issue.


Authors should follow the usual procedure of Thai Journal of Mathematics (TJM) for the preparation as well as for the submission of their work (, but they have to clearly mention during the submission process that the manuscript is intended for the “Special issue: Dedicated to Prof.Suthep Suantai for his 60th birthday anniversary”, by selecting Article type accordingly.


Submissions Due: 30 May 2020
Expected Acceptance Notification: 30 June 2020
Expected On-line / Printed Publication: 30 September 2020


Guest Editors:

Attapol Kaewkhao, Chiang Mai University

Narin Petrot, Naresuan University

Pasit Cholamjiak, University of Phayao

Poom Kumam, KMUTT

The workshop on fixed point theory and optimization will be held at the Department of Mathematics, Faculty of Science, Chiang Mai University, Chiang Mai, Thailand, during 17-18 January 2020. One of the main purposes of this workshop is to celebrate the 60th birthday of Professor Suthep Suantai, who is the leader and has a great contribution in the area of fixed point theory and optimization with applications to the real-world problems.
This workshop is a celebration of the 60th birthday of Professor Dr. Suthep Suantai.

A Special Issue of (IWANA2019)
International Workshop on Applied Nonlinear Analysis (IWANA2019)September 12-14, 2019.

The Tide Hotel, Bangsean, Chonburi, Thailand

This Special Issue welcomes submissions dealing with the main topic of "Applied Nonlinear Analysis" and related issues, including optimization, both theory and applications. Note that only presenters at the IWANA2019 conference iare eligible to submit.

This Special Issue (SI:IWANA2019) will appear as the Volume 18 No.1 in March 2020.

Guest Editors:
Juan Martínez-Moreno (
Parin Chaipunya (
Antonio Francisco Roldan-Lopez-de-Hierro (
Supak Phiangsungnoen (

Instructions for submission:
Authors should submit their manuscript in PDF file (up to 20 pages),
electronically, DIRECTLY to the online submission system of Thai J. Math
mentioning that it is for this Special Issue IWANA2019.

Submission deadline: December 15, 2019.

The authors can find the "Head of LATEX form" from the Journal Website.

Vol 18, No 2 (2020): June (In Progress)

Table of Contents

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|