Journal of the Chungcheong Mathematical Society

CONTENTS

The results concerning Jordan derivations Byung Do Kim	523
The Jordan derivations of semiprime rings and noncommutative Banach alge- bras Byung Do Kim	531
Local spectral properties of quasi-decomposable operator Jong Kwang Yoo and Heung Joon Oh	543
Periodicities of some characteristic matrices of cellular automata with rule 60 and intermediate boundary condition Jae Gyeom Kim	553
On PC$\star$-closed sets -closed sets Erdal Ekici and A. Nur Tunc	565
On a characterization of secure trinomials on $\mathbb{Z}_{2^n}$ Min Surp Rhee	573
Boundedness for nonlinear perturbed functional differential systems via $t_{\infty}$- similarity Dong Man Im	585
Average of L-functions of Artin-Schreier extensions Hwanyup Jung	599
On multipliers on boolean algebras Kyung Ho Kim	613
Approximate solutions to one-dimensional backward heat conduction problem using least squares support vector machines Ziku Wu, Fule Li, and Do Young Kwak	631
On semiderivations of near-rings Kyung Ho Kim	643
Quasi-Anosov diffeomorphisms and various shadowing properties Manseob Lee	651
Various shadowing properties for inverse limit systems Manseob Lee	657
Some optimal methods with eighth-order convergence for the solution of non- linear equations Weonbae Kim and Changbum Chun	663
Algebraic spectral subspaces of operators with finite ascent Hyuk Han	677