Journal of the Chungcheong Mathematical Society

Volume 28, No. 2, May 2015

CONTENTS

Multiple positive solutions of nonlinear boundary value problem with finite fractional difference Yansheng He and Chengmin Hou	173
Characterizations of gamma distrbution via sub-independent random variables G.G.Hamedani	187
On the existence of $p$-adic roots Young-Hee Kim and Jongsung Choi	195
Kupka-Smale differentiable maps Manseob Lee	201
An algebraic solution of Einstein's field equations in $X_4$ Jong Woo Lee	207
Boundedness in perturbed nonlinear functional differential systems Sang Il Choi and Yonn Hoe Goo	217
A decomposition of the curvature tensor on $SU(3)/T(k,l)$ with a $SU(3)$-invariant metric Heui-Sang Son, Joon-Sik Park and Yong-Soo Pyo	229
Computation of Nielsen numbers for certain maps of hyperbolic surfaces Seung Won Kim	243
Sharp $L^p\rightarrow L^r$ estimates of restricted averaging operators over curves on planes in finite fields Doowon Koh	251
Backward extension of subnormal 2-variable weighted shifts Jun Ik Lee	261
The properly supported generalized pseido differential operators Buhyeon Kang	269
Hyperbolicity for closed relations Gui Seok and Kyung Bok Lee	287
A nondegenerate bilinear form induced by color Poisson bialgebra Sei-Qwon Oh and Hanna Sim	307
Approximate quadratic mappings in quasi-$\beta$-normed spaces Young Soon Hong and Hark-Mahn Kim	311
A fixed point approach to the stability of additive-quadratic functional equations in modular spaces ChangIl Kim and Se Won park	321
On single cycle $T$-functions generated by some elements Min Surp Rhee	331
Existence of mild solutions of partial neutral integrodifferential equations with unbounded delay Sung Kyu Choi, Youn Hee Kim, and Namjip Koo	345

Journal of the Chungcheong Mathematical Society

Volume 28, No. 2, May 2015

CONTENTS