### Table of Contents

#### Articles

A Simple Proof of the Brouwer Fixed Point Theorem | |

S. Dhompongsa, J. Nantadilok | 519 - 525 |

Convergence Theorems of Fixed Point Iterative Methods Defined by Admissible Functions | |

Nuttawut Bunlue, Suthep Suantai | 527 - 537 |

Applications of Student Activity Problems for Some Kirkman Type Problems | |

Vites Longani, Decha Samana, Sasisophit Buada | 539 - 544 |

Existence and Algorithm for Generalized Mixed Equilibrium Problem with a Relaxed Monotone Mapping | |

Prapairat Junlouchai, Somyot Plubtieng | 545 - 560 |

Common Coupled Fixed Points of a Pair of Compatible Mappings satisfying the Condition (B) with a Rational Expression in Partially Ordered Metric Spaces | |

G. V. R. Babu, Y. J. Cho, M. V. R. Kameswari | 561 - 579 |

Convergence Theorems for Finite Family of Multivalued k-Strictly Pseudononspreading Mappings in R-Trees | |

Khanitin Samanmit | 581 - 591 |

An Iterative Shrinking Generalized $f$-Projection Method for $G$-Quasi-Strict Pseudo-Contractions in Banach Spaces | |

Kasamsuk Ungchittrakool, Narin Petrot, Apisit Jarernsuk | 593 - 611 |

Some Proximally Coincidence Points for Non-self Mappings and Self Mappings in Partially Ordered Metric Spaces | |

R. Wangkeeree, N. Sisarat | 613 - 625 |

Convergence of the S-Iteration Process for a Pair of Single-valued and Multi-valued Generalized Nonexpansive Mappings in CAT(K) Spaces | |

Sirichai Sopha, Withun Phuengrattana | 627 - 640 |

On Connected Cayley Graphs of Semigroups | |

T. Suksumran, S. Panma | 641 - 652 |

Approximation Method for Fixed Points of Nonlinear Mapping and Variational Inequalities with Application | |

Kanyarat Cheawchan, Atid Kangtunyakarn | 653 - 672 |

Hybrid Steepest Descent Method of One-parameter Nonexpansive Cosine Families for Variational Inequality Problems in Hilbert Spaces | |

Nimit Nimana, Somboon Niyom, Narin Petrot | 673 - 686 |

Coupled Coincidence Point Theorems for a \alpha-\psi-Contractive Mapping in Partially Metric Spaces with M-Invariant Set | |

Phakdi Charoensawan | 687 - 702 |

Extendability of the Complementary Prism of Extendable Graphs | |

Pongthep Janseana, Nawarat Ananchuen | 703 - 721 |

Convergence of Nondiagonal Sequences of Linear Pad ́e-Orthogonal Approximants | |

Nattapong Bosuwan | 723 - 736 |

Stability of Generalized Euler Differential Equations of First Order with Variable Coefficients | |

Zhihua Wang, Themistocles M Rassias | 765 - 774 |

Numerical Treatment to a Water-Quality Measurement Model in an Opened-Closed Reservoir | |

Witsarut Kraychang, Nopparat Pochai | 775 - 788 |

**Copyright** 2018 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|