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 J. Korean Math. Soc. 2015 Vol. 52, No. 4, 663—889Download front and back covers
 Structure of zero-divisors in skew power series rings Chan Yong Hong, Nam Kyun Kim, and Yang Lee MSC numbers : 16S36, 16W20, 16U80 J. Korean Math. Soc. 2015 Vol. 52, No. 4, 663—683
 On the $(n, d)^{th}$ $f$-ideals Jin Guo and Tongsuo Wu MSC numbers : 13P10, 13F20, 13C14, 05A18 J. Korean Math. Soc. 2015 Vol. 52, No. 4, 685—697
 On the growth of algebraic polynomials in the whole complex plane F. G. Abdullayev and N. P. \"{O}zkartepe MSC numbers : Primary 30A10, 30C10; Secondary 41A17 J. Korean Math. Soc. 2015 Vol. 52, No. 4, 699—725
 Sufficient conditions for starlikeness V. Ravichandran and Kanika Sharma MSC numbers : 30C80, 30C45 J. Korean Math. Soc. 2015 Vol. 52, No. 4, 727—749
 A class of new near-perfect numbers Yanbin Li and Qunying Liao MSC numbers : 11A25, 11B83 J. Korean Math. Soc. 2015 Vol. 52, No. 4, 751—763
 On very palindromic" sequences Bojan Ba\v si\'c MSC numbers : 11A63 J. Korean Math. Soc. 2015 Vol. 52, No. 4, 765—780
 On semi-Armendariz matrix rings Kamil Koz{\l}owski and Ryszard Mazurek MSC numbers : 16N40, 16S36, 16S50 J. Korean Math. Soc. 2015 Vol. 52, No. 4, 781—795
 Analysis of possible pre-computation aided DLP solving algorithms Jin Hong and Hyeonmi Lee MSC numbers : Primary 11T71, 94A60; Secondary 68R99 J. Korean Math. Soc. 2015 Vol. 52, No. 4, 797—819
 Relative and Tate cohomology of Ding modules and complexes Chunxia Zhang MSC numbers : 16E40, 18G10, 18G25 J. Korean Math. Soc. 2015 Vol. 52, No. 4, 821—838
 A note on strongly $*$-clean rings Jian Cui and Zhou Wang MSC numbers : 16W10, 16U99 J. Korean Math. Soc. 2015 Vol. 52, No. 4, 839—851
 Grossberg-Karshon twisted cubes and basepoint-free divisors Megumi Harada and Jihyeon Jessie Yang MSC numbers : Primary 14M25, 20G05; Secondary 14C20 J. Korean Math. Soc. 2015 Vol. 52, No. 4, 853—868
 The composition series of ideals of the partial-isometric crossed product by semigroup of endomorphisms Sriwulan Adji and Saeid Zahmatkesh MSC numbers : Primary 46L55 J. Korean Math. Soc. 2015 Vol. 52, No. 4, 869—889