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 Bull. Korean Math. Soc. 2013 Vol. 50, No. 2, 353—704Download front and back covers
 Bifurcation analysis of a delayed predator-prey model of prey migration and predator switching Changjin Xu, Xianhua Tang, and Maoxin Liao MSC numbers : 34K20, 34C25 Bull. Korean Math. Soc. 2013 Vol. 50, No. 2, 353—373
 Weak and strong convergence theorems for a system of mixed equilibrium problems and a nonexpansive mapping in Hilbert spaces Somyot Plubtieng and Kamonrat Sombut MSC numbers : 49J30, 49J53, 47H09, 47H10 Bull. Korean Math. Soc. 2013 Vol. 50, No. 2, 375—388
 Pure injective representations of quivers Esmaeil Hosseini MSC numbers : Primary 16G20; Secondary 16E10 Bull. Korean Math. Soc. 2013 Vol. 50, No. 2, 389—398
 Thin additive bases for monic polynomials in $\mathbb{F}_q[t]$ Andreas O. Bender, Bo-Hae Im, and Yoonjin Lee MSC numbers : Primary 11B13; Secondary 11T55 Bull. Korean Math. Soc. 2013 Vol. 50, No. 2, 399—405
 On the $p$-primary part of Tate-Shafarevich group of elliptic curves over $\mathbb{Q}$ when $p$ is supersingular Dohyeong Kim MSC numbers : 11G05 Bull. Korean Math. Soc. 2013 Vol. 50, No. 2, 407—416
 Characterizations of geometrical properties of Banach spaces using $\psi$-direct sums Zhihua Zhang, Lan Shu, Jun Zheng, and Yuling Yang MSC numbers : 46B25, 46b20, 46B99 Bull. Korean Math. Soc. 2013 Vol. 50, No. 2, 417—430
 The first positive eigenvalue of the Dirac operator on 3-dimensional Sasakian manifolds Eui Chul Kim MSC numbers : 53C25, 53C27 Bull. Korean Math. Soc. 2013 Vol. 50, No. 2, 431—440
 On null cut points in two-dimensional spacetimes Do-Hyung Kim and Byung Hak Kim MSC numbers : Primary 53B30, 53C50 Bull. Korean Math. Soc. 2013 Vol. 50, No. 2, 441—444
 Semigroup presentations for congruences on groups Gonca Ay\i k and Basri \c{C}al{\i}\c{s}kan MSC numbers : 20M05 Bull. Korean Math. Soc. 2013 Vol. 50, No. 2, 445—449
 Hybrid mean value of the generalized Kloosterman sums and Dirichlet character of polynomials Wang Jingzhe MSC numbers : 11M20 Bull. Korean Math. Soc. 2013 Vol. 50, No. 2, 451—458
 Matlis injective modules Hangyu Yan MSC numbers : 16D10, 16E30 Bull. Korean Math. Soc. 2013 Vol. 50, No. 2, 459—467
 A correction to a paper on Roman $k$-domination in graphs Doost Ali Mojdeh and Seyed Mehdi Hosseini Moghaddam MSC numbers : 05C69 Bull. Korean Math. Soc. 2013 Vol. 50, No. 2, 469—473
 Localization of Injective modules over $w$-Noetherian rings Hwankoo Kim and Fanggui Wang MSC numbers : Primary 13F05; Secondary 13A15, 13C13 Bull. Korean Math. Soc. 2013 Vol. 50, No. 2, 475—483
 Schur power convexity of Gini means Zhen-Hang Yang MSC numbers : Primary 26B25, 26E60; Secondary 26D15 Bull. Korean Math. Soc. 2013 Vol. 50, No. 2, 485—498
 Uniqueness of the solution of half inverse problem for the impulsive Sturm Liouville operator A. Sinan Ozkan, Baki Keskin, and Yasar Cakmak MSC numbers : 34A55, 34B24, 34L05, 45C05 Bull. Korean Math. Soc. 2013 Vol. 50, No. 2, 499—506
 $n$-ary hypergroups associated with $n$-ary relations Seid Mohammad Anvariyeh and Somayyeh Momeni MSC numbers : 20N20 Bull. Korean Math. Soc. 2013 Vol. 50, No. 2, 507—524
 Recurrent Jacobi operator of real hypersurfaces in complex two-plane Grassmannians Imsoon Jeong, Juan de Dios P\'erez, and Young Jin Suh MSC numbers : 53C40, 53C15 Bull. Korean Math. Soc. 2013 Vol. 50, No. 2, 525—536
 Addendum and Erratum to On the structure of the fundamental group of manifolds with positive scalar curvature" Jin Hong Kim MSC numbers : 53C20 Bull. Korean Math. Soc. 2013 Vol. 50, No. 2, 537—542
 On right-angled Artin groups whose underlying graphs have two vertices with the same link Jongtae Kim and Myoungho Moon MSC numbers : Primary 20F36, 20F65; Secondary 05C25 Bull. Korean Math. Soc. 2013 Vol. 50, No. 2, 543—558
 On some results of Bump-Choie and Choie-Kim Joseph Hundley MSC numbers : 11F70, 11F46, 11F50 Bull. Korean Math. Soc. 2013 Vol. 50, No. 2, 559—581
 A note on the $q$-analogue of Kim's $p$-adic $\log$ gamma type functions associated with $q$-extension of Genocchi and Euler numbers with weight $\alpha$ Serkan Arac\i, Mehmet Acikgoz, and Kyoung Ho Park MSC numbers : Primary 46A15; Secondary 41A65 Bull. Korean Math. Soc. 2013 Vol. 50, No. 2, 583—588
 Solvability and boundedness for general variational inequality problems Gui-Mei Luo MSC numbers : 39B62, 47J20, 58E35, 65K10 Bull. Korean Math. Soc. 2013 Vol. 50, No. 2, 589—599
 A class of arithmetic functions on $\text{PSL}_2(\mathbb{Z})$ Paul Spiegelhalter and Alexandru Zaharescu MSC numbers : Primary 11N37; Secondary 11B57 Bull. Korean Math. Soc. 2013 Vol. 50, No. 2, 601—610
 Uniform asymptotics for the finite-time ruin probability in a general risk model with pairwise quasi-asymptotically independent claims and constant interest force Qingwu Gao and Yang Yang MSC numbers : 62P05, 62E20, 60F05 Bull. Korean Math. Soc. 2013 Vol. 50, No. 2, 611—626
 Maximal properties of some subsemibands of order-preserving full transformations Ping Zhao and Mei Yang MSC numbers : 20M20 Bull. Korean Math. Soc. 2013 Vol. 50, No. 2, 627—637
 On Finsler metrics of constant $S$-curvature Xiaohuan Mo and Xiaoyang Wang MSC numbers : 58E20 Bull. Korean Math. Soc. 2013 Vol. 50, No. 2, 639—648
 Finiteness properties of extension functors of cofinite modules Yavar Irani and Kamal Bahmanpour MSC numbers : 13D45, 14B15, 13E05 Bull. Korean Math. Soc. 2013 Vol. 50, No. 2, 649—657
 A note on the twisted Lerch type Euler zeta functions Yuan He and Wenpeng Zhang MSC numbers : 11B68, 11S40, 05A19 Bull. Korean Math. Soc. 2013 Vol. 50, No. 2, 659—665
 Compatibility in certain quasigroup homogeneous space Bokhee Im and Ji-Young Ryu MSC numbers : Primary 20N05; Secondary 05C69, 20B99 Bull. Korean Math. Soc. 2013 Vol. 50, No. 2, 667—674
 Uniformly bounded composition operators on a Banach space of bounded Wiener-Young variation functions Dorota G{\l}azowska, Jos\'e Atilio Guerrero, Janusz Matkowski, and Nelson Merentes MSC numbers : Primary 47B33, 26B30, 26B40; Secondary 39B22 Bull. Korean Math. Soc. 2013 Vol. 50, No. 2, 675—685
 Reducing subspaces for Toeplitz operators on the polydisk Yanyue Shi and Yufeng Lu MSC numbers : Primary 47B35, 47B38 Bull. Korean Math. Soc. 2013 Vol. 50, No. 2, 687—696
 On the solutions of $x^k =g$ in a finite group Sunil Kumar Prajapati and Ritumoni Sarma MSC numbers : 20C15 Bull. Korean Math. Soc. 2013 Vol. 50, No. 2, 697—704