### Table of Contents

#### Articles

A Generalization of the Fourier Transform of Ultrahyperbolic Operator | |

Manuel A. Aguirre | 499 - 518 |

Convergence Analysis for Family of Weak Relatively Nonexpansive Mappings and System of Equilibrium Problems | |

Yekini Shehu | 519 - 541 |

Ruin Probability-Based Initial Capital of the Discrete-Time Surplus Process in Insurance under Reinsurance as a Control Parameter | |

Arthit Intarasit, K. Chuarkham, P. Sattayatham | 543 - 562 |

Isomorphisms via Congruences on \Gamma -Semigroups and \Gamma -Ideals | |

H. Hedayati | 563 - 575 |

Ideal Convergence Sequence Spaces Defined by a Musielak-Orlicz Function | |

Kuldip Raj, Sunil K. Sharma | 577 - 587 |

Note on “Common Fixed Point Results for Noncommuting Mappings Without Continuity in Cone Metric Spaces” | |

Hamidreza Rahimi, Ghasem Soleimani Rad | 589 - 599 |

On the ϵ-Approximation of the Solution of the Black-Scholes Equation | |

Amnuay Kananthai | 601 - 609 |

New Approach for Numerical Solution of the One-Dimensional Bratu Equation | |

Mohammad Zarebnia, Zahra Sarvari | 611 - 621 |

Some Sequence Spaces Defined by |A| Summability and a Modulus Function in Seminormed Space | |

Indu Bala, Vinod K. Bhardwaj, Ekrem Savas | 623 - 631 |

Weak and Strong Convergence Theorems for an $\alpha$-Nonexpansive Mapping and a Generalized Nonexpansive Mapping in Hilbert Spaces | |

Kriengsak Wattanawitoon, Yaowalux Khamlae | 633 - 643 |

On Some Properties of Fractional Calculus Operators Associated with Generalized Mittag-Leffler Function | |

Mumtaz Ahmad Khan, Shakeel Ahmed | 645 - 654 |

Fuzzy Analysis Methods for the Estimation of Medical Service Value Model | |

Wiyada Kumam, Adisak Pongpullponsak | 655 - 665 |

Coupled Coincidence Point Theorems for $(\varphi,\psi)$-Contractive Mixed Monotone Mapping in Partially Ordered Metric Spaces | |

Phakdi Charoensawan, Chalongchai Klanarong | 667 - 682 |

Interval Valued Intuitionistic Fuzzy Ideals of Regular LA-Semigroups | |

Naveed Yaqoob | 683 - 695 |

On Estimates for the Bessel Transform in the Space Lp,\alpha(R+) | |

R. Daher, M. El Hamma | 697 - 702 |

Rate of Convergence of S-iteration and Ishikawa Iteration for Continuous Functions on Closed Intervals | |

Somchai Kosol | 703 - 709 |

Special M-Hyperidentities in (x(yz))z with Opposite Loop and Reverse Arc Graph Varieties of Type (2,0) | |

Apinant Anantpinitwatna, Tiang Poomsa-ard | 711 - 723 |

Certain Kummer’s Matrix Function of Two Complex Variables under Certain Differential and Integral Operators | |

R.A. Rashwan, M.S. Metwally, M.T. Mohamed, A. Shehata | 725 - 740 |

A Note on Homomorphisms and Anti-Homomorphisms on ∗-Ring | |

Nadeem ur Rehman, Abu Zaid Ansari, Claus Haetinger | 741 - 750 |

Existence Results for Vector Saddle Point Problems in the n-direction | |

Kanokwan Sitthithakerngkiet | 751 - 763 |

**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).

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|ISSN 1686-0209|