## 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.

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Reviewing/Indexing
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,
Scopus [Elsevier]

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).
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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.

Submission

Authors should follow the usual procedure of Thai Journal of Mathematics (TJM) for the preparation as well as for the submission of their work (http://thaijmath.in.cmu.ac.th/index.php/thaijmath/index), 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.

Timeline

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 (chaipunya.p@gmail.com)
Antonio Francisco Roldan-Lopez-de-Hierro (aroldan@ugr.es)
Supak Phiangsungnoen (supak.pia@rmutr.ac.th)

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.
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### Vol 17, No 3 (2019): December

#### Articles

 A Generalization of the Trichotomy Principle PDF Jaruwat Rodbanjong, Pimpen Vejjajiva 597-605
 Hybrid Forward-Backward Algorithms Using Linesearch Rule for Minimization Problem PDF Kunrada Kankam, Nattawut Pholasa, Prasit Cholamjiak 607-625
 Common Fixed Point Results for α-ψ-Locally Contractive Type Mappings in Right Complete Dislocated Quasi G-Metric Spaces PDF Abdullah Shoaib, Fahim Uddin, Arshad Muhammad, Muhammad Usman Ali 627-638
 A Fixed Point Theorem for Generalized Lipschitzian Semigroups in Hilbert Spaces PDF Muhamad Najibufahmi, Atok Zulijanto 639-648
 Error Bounds of Conjugate of a Periodic Signal by Almost Generalized Nörlund Means PDF Vishnu Narayan Mishra, Vaishali Sonavane 649-662
 Numerical Solution of Third Order Singularly Perturbed Boundary Value Problems Using Exponential Quartic Spline PDF Arshad Khan, Pooja Khandelwal 663-672
 Mathematical Simulation of a Groundwater Management in a Drought Area Using an Implicit Finite Dierence Method PDF Nattawut Pongnu, Nopparat Pochai 673-684
 Numerical Simulation of Water-Quality Model on Flooding Using Revised Lax-Diffusive and Modified Siemieniuch-Gladwell Methods PDF Kanawoot Subklay, Nopparat Pochai 685-702
 Fixed Point Theorems for Generalized Contractions with Triangular $\alpha$-Orbital Admissible Mappings on Branciari Metric Spaces PDF Suparat Baiya, Anchalee Kaewcharoen 703-725
 Meromorphic Function Sharing Small Functions with Its Derivative PDF Pulak Sahoo, Gurudas Biswas 727–743
 Iterative Algorithm for a System of Equilibrium Problems of Bregman Strongly Nonexpansive Mapping PDF Ali Abkar, Mohsen Shekarbaigi 745–765
 Some Matrices in Term of Perrin and Padovan Sequences PDF Kannika Khompungson, Benjawan Rodjanadid, Supunnee Sompong 767–774
 Convergence Theorems for $G$-Nonexpansive Mappings in CAT(0) Spaces Endowed with Graphs PDF Watcharapong Anakkamatee, Buris Tongnoi 775–787
 Fourth-Order Conservative Algorithm for Nonlinear Wave Propagation: the Rosenau-KdV Equation PDF Rakbhoom Chousurin, Thanasak Mouktonglang, Phakdi Charoensawan 789–803
 Convergence Theorems of the Modified SP-Iteration for $G$-Asymptotically Nonexpansive Mappings with Directed Grahps PDF Rattanakorn Wattanataweekul 805–820
 Common Endpoints for Non-Commutative Suzuki Mappings PDF Thanomsak Laokul, Bancha Panyanak 821–828
 Remarks on Brouwer Fixed Point Theorem for Some Surfaces in $\mathbb{R}^3$ PDF Preeyaporn Thongin, Worapong Fupinwong 829–842
 Projection Type Ishikawa Iteration with Perturbations for Common Fixed Points of Two Nonself Generalized Asymptotically Quasi-Nonexpansive Mappings PDF Kritsadaphiwat Wongyai, Tanakit Thianwan 843–859

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|