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 Bull. Korean Math. Soc. 2012 Vol. 49, No. 6, 1131—1357
 Constant-sign solutions of $p$-Laplacian type operators on time scales via variational methods Li Zhang and Weigao Ge MSC numbers : 34B24, 35A15 Bull. Korean Math. Soc. 2012 Vol. 49, No. 6, 1131—1145
 Coincidence theorems for noncompact $\mathfrak{RC}$-maps in abstract convex spaces with applications Ming-ge Yang and Nan-jing Huang MSC numbers : 54H25, 49J53, 49J35 Bull. Korean Math. Soc. 2012 Vol. 49, No. 6, 1147—1161
 Einstein half lightlike submanifolds with special conformalities Dae Ho Jin MSC numbers : Primary 53C25, 53C40, 53C50 Bull. Korean Math. Soc. 2012 Vol. 49, No. 6, 1163—1178
 Doubly nonlinear parabolic equations involving $p$-Laplacian operators via time-discretization method Kiyeon Shin and Sujin Kang MSC numbers : 35K55, 35K45 Bull. Korean Math. Soc. 2012 Vol. 49, No. 6, 1179—1192
 Global stability analysis for a class of Cohen-Grossberg neural network models Yingxin Guo MSC numbers : 34K20, 34K13, 92B20 Bull. Korean Math. Soc. 2012 Vol. 49, No. 6, 1193—1198
 On universal coverings of Lie tori Valiollah Khalili MSC numbers : 17B67 Bull. Korean Math. Soc. 2012 Vol. 49, No. 6, 1199—1211
 Existence of three solutions for a mixed boundary value problem with the Sturm-Liouville equation Diego Averna, Nicol\'o Giovannelli, and Elisabetta Tornatore MSC numbers : 34B15 Bull. Korean Math. Soc. 2012 Vol. 49, No. 6, 1213—1222
 A note on quasi-periodic perturbations of elliptic equilibrium points Houyu Zhao MSC numbers : 37C55, 34A30, 34C20 Bull. Korean Math. Soc. 2012 Vol. 49, No. 6, 1223—1240
 Maximum principle and comparison principle of $p$-harmonic functions via $p$-harmonic boundary of graphs Yong Hah Lee MSC numbers : 31C20, 60J50, 94C15 Bull. Korean Math. Soc. 2012 Vol. 49, No. 6, 1241—1250
 Note on Pure-strategy Nash equilibria in matrix games Weidong Ma MSC numbers : 91A05 Bull. Korean Math. Soc. 2012 Vol. 49, No. 6, 1251—1254
 Global asymptotic stability for a diffusion Lotka-Volterra competition system with time delays Jia-Fang Zhang and Ping-An Zhang MSC numbers : 35K57, 92D25 Bull. Korean Math. Soc. 2012 Vol. 49, No. 6, 1255—1262
 On Opial inequalities involving higher order derivatives Chang-Jian Zhao and Wing-Sum Cheung MSC numbers : 26D15 Bull. Korean Math. Soc. 2012 Vol. 49, No. 6, 1263—1274
 Isometric reflections in two dimensions and dual $\mathsf{L}^1$-structures Francisco J. Garc\'{i}a-Pacheco MSC numbers : Primary 46B20, 46C05, 46B04 Bull. Korean Math. Soc. 2012 Vol. 49, No. 6, 1275—1289
 A new alternative elliptic PDE in EIT Imaging Sungwhan Kim MSC numbers : Primary 35J25, 35A35, 35R30 Bull. Korean Math. Soc. 2012 Vol. 49, No. 6, 1291—1302
 On the mean values of $L(1,\chi)$ Zhaoxia Wu and Wenpeng Zhang MSC numbers : 11M06 Bull. Korean Math. Soc. 2012 Vol. 49, No. 6, 1303—1310
 Multiplicity of nontrivial solutions to perturbed Schr\"{o}dinger system with magnetic fields Huixing Zhang and Wenbin Liu MSC numbers : 35B33, 35J60, 35J65 Bull. Korean Math. Soc. 2012 Vol. 49, No. 6, 1311—1326
 An identity on the $2m$-th power mean value of the generalized Gauss sums Feng Liu and Quan-Hui Yang MSC numbers : Primary 11L05; Secondary 11M20 Bull. Korean Math. Soc. 2012 Vol. 49, No. 6, 1327—1334
 A Hardy inequality on H-type groups Yingxiong Xiao MSC numbers : Primary 22E25, 26D10 Bull. Korean Math. Soc. 2012 Vol. 49, No. 6, 1335—1348
 On Fourier coefficients of some meromorphic modular forms Yutaro Honda and Masanobu Kaneko MSC numbers : 11F30, 11F33 Bull. Korean Math. Soc. 2012 Vol. 49, No. 6, 1349—1357