Journal of the Chungcheong Mathematical Society

CONTENTS

On the fuzzy stability problem of a quadratic mapping with involution Heejeong Koh	1
Projections of algebraic varieties with almost linear presentation I Jeaman Ahn	15
On minimizers for the interaction energy with mildly repulsive potential Hwa Kil Kim	23
Stability Problem of Generalized Cubic Functions on a Quasi-Fuzzy Normed Space Dongseung Kang and Hoewoon B. Kim	29
A semigroup approach to the Black-Scholes equation Young S. Lee	47
CLOSED AND DENSE ELEMENTS OF BE -ALGEBRAS Bala Prabhakar Mattaparthi, Kalesha Vali Shaik, and Sambasiva Rao	53
An Introduction to Epsilon zero Density and Dense Ace Buhyeon Kang	69
Regular graphs and discrete subgroups of projective linear groups Hi-joon Chae	87
k spaced sum of generalized pell sequences Eunmi Choi and Jiin Jo	97
A fixed point approach to the stability of the quadratic and cubic type functional equation Yang-Hi Lee	113
On the stability of an additive-quartic set-valued functional equation Yang-Hi Lee	127
On AP-Henstock-Stieltjes integral for fuzzy-number-valued functions on in nite interval Gwang Sik Eun and Ju Han Yoon	139
Global generalized cross validation in the preconditioned Gl-LSQR Seiyoung Chung, SeYoung Oh, and SunJoo Kwon	149
Expansivity on orbital inverse limit systems Hahng-Yun Chu and Nakyung Lee	157