Journal of the Chungcheong Mathematical Society

CONTENTS

Existence of three solutions of non-homogeneous BVPs for singular differential systems with Laplacian operators Xiaohui Yang and Yuji Liu	187
Half $b$ - connectedness in topological spaces Takashi Noiri and Shyamapada Modak	221
Some generalizations of weakly $M$-semi-continuous and weakly $M$-precontinuous functions Takashi Noiri and Valeriu Popa	229
On delta alpha derivative on time scales Dafang Zhao, Xuexiao You, and Jian Cheng	255
Multi-degree reduction of B\'ezier curves with constraints of endpoints using Lagrange multipliers Hasik Sunwoo	267
On the recurrence formula of the Euler zeta functions Joonhyung Kim	283
The general solution and approximations of a decic type functional equation in various normed spaces Mohan Arunkumar, Abasalt Bodaghi, John Michael Rassias, and Elumalai Sathya	287
Portfolio selection with income risk: a new approach Byung Hwa Lim	329
Stochastic differential equation for white noise functionals Un Cig Ji	337
Boundedness in functional differential systems via $t_{\infty}$-similarity Yoon Hoe Goo	347
A remark on Fano manifolds of Picard number one and index greater than one Nam-Hoon Lee	361
Pairwise semiopen and semiclosed mappings in intuitionistic smooth bitopological spaces Jin Tae Kim and Seok Jong Lee	367
Optimal consumption, portfolio, and life insurance with borrowing constraint and risk aversion change Ho-Seok Lee	375