Journal of the Chungcheong Mathematical Society

CONTENTS

Harmonic Finsler metrics on spheres Kim Chang-Wan	1
Stability of a quadratic-cubic-quartic functional equation Yang-Hi Lee	9
Existence of positive solutions of predator-prey systems with degenerate diffusion rates Kimun Ryu	19
Minimization of the Dense Subset Buhyeon Kang	33
Weight enumerators of two classes of linear codes Jaehyun Ahn, Yeonseok Ka	43
Boundedness of the spectra of base functions for new spaces Hee Chul Pak	57
The m-step competition graphs of d-partial orders Jihoon Choi	65
A fixed point approach to the stability of an additive-quadratic-quartic functional equation Yanh-Hi Lee	77
The integration by parts for the AP-Henstock integral Ju Han Yoon	89
A note on weak expansive homeomorphisms on a compact metric space Namjip Koo, Gansukh Tumur	95
Consumption-Leisure Choice with Stochastic Income Flow Ho-Seok Lee, Byung Hwa Lim	103
Free actions of finite groups on 3-dimensional nilmanifolds with homotopically trivial translations Daewhan Koo, Eunmi Park, Joonkook Shin	113
A note on complete moment convergence for m-PNQD random variables Mi Hwa Ko	133
Hyperstability of a sum form functional equation related distance measures Whan Young Lee	147
The chain recurrent set on compact TVS-cone metric spaces KyungBok Lee	157
Barrier options under the mfBm with jumps : Application of the BDF2 method Heungsu Choi, Younhee Lee	165
Dynamical properties on iterated function systems Hahng-Yun Chu, Minhee Gu, Se-Hyun Ku, Jong-Suh Park	173