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 Bull. Korean Math. Soc. 2019 Vol. 56, No. 2, 277—554Download front and back covers
 Improving the Pocklington and Padr\'{o}-S\'{a}ez cube root Algorithm Gook Hwa Cho, Hyang-Sook Lee MSC numbers : 11T06, 11Y16, 68W40 Bull. Korean Math. Soc. 2019 Vol. 56, No. 2, 277—283
 Cyclic codes from the first class two-prime Whiteman's generalized cyclotomic sequence with order 6 Pramod Kumar Kewat, Priti Kumari MSC numbers : 94A05, 94A55, 94B15 Bull. Korean Math. Soc. 2019 Vol. 56, No. 2, 285—301
 Erratum: "(Weak) Implicative hyper $K$-ideals", Bull. Korean Math. Soc. 40 (2003), No. 1, pp. 123--137 Soodabeh Madadi-Dargahi, Mohammad Ali Nasr-Azadani MSC numbers : 06F35, 03G25 Bull. Korean Math. Soc. 2019 Vol. 56, No. 2, 303—303
 Potentially eventually positive broom sign patterns Ber-Lin Yu MSC numbers : 15A48, 15A18, 05C50 Bull. Korean Math. Soc. 2019 Vol. 56, No. 2, 305—318
 Compact sums of Toeplitz products on weighted Dirichlet space of the unit ball Yinyin Hu, Yufeng Lu MSC numbers : Primary 47B35 Bull. Korean Math. Soc. 2019 Vol. 56, No. 2, 319—331
 Average values on the Jacobian variety of a hyperelliptic curve Jiman Chung, Bo-Hae Im MSC numbers : Primary 11G05 Bull. Korean Math. Soc. 2019 Vol. 56, No. 2, 333—349
 Pricing symmetric type of power quanto options Jaesung Lee, Youngrok Lee MSC numbers : Primary 91B25, 91G60, 65C20 Bull. Korean Math. Soc. 2019 Vol. 56, No. 2, 351—364
 Groups having many 2-generated subgroups in a given class Fares Gherbi, Nadir Trabelsi MSC numbers : 20F18, 20F45 Bull. Korean Math. Soc. 2019 Vol. 56, No. 2, 365—371
 On strongly Gorenstein hereditary rings Kui Hu, Hwankoo Kim, Fanggui Wang, Longyu Xu, Dechuan Zhou MSC numbers : 13G05, 13D03 Bull. Korean Math. Soc. 2019 Vol. 56, No. 2, 373—382
 On rectifying-type curves in a Myller configuration Gabriel Macsim, Adela Mihai, Andreea Olteanu MSC numbers : 53A04 Bull. Korean Math. Soc. 2019 Vol. 56, No. 2, 383—390
 A simple proof of the improved Johnson bound for binary codes Le Thi Ngoc Giau, Phan Thanh Toan MSC numbers : 94B65 Bull. Korean Math. Soc. 2019 Vol. 56, No. 2, 391—397
 Boundedness of the strong maximal operator with the Hausdorff content Hiroki Saito MSC numbers : Primary 42B25; Secondary 42B35 Bull. Korean Math. Soc. 2019 Vol. 56, No. 2, 399—406
 Conformal transformation of locally dually flat Finsler metrics Laya Ghasemnezhad, Bahman Rezaei MSC numbers : 53C60, 53C25 Bull. Korean Math. Soc. 2019 Vol. 56, No. 2, 407—418
 Skew constacyclic codes over finite commutative semi-simple rings Hai Q. Dinh, Bac Trong Nguyen, Songsak Sriboonchitta MSC numbers : Primary 94B15, 94B05; Secondary 11T71 Bull. Korean Math. Soc. 2019 Vol. 56, No. 2, 419—437
 Rings and modules characterized by opposites of FP-injectivity Engin B\"{u}y\"{u}ka\c{s}{\i}k, Gizem Kafkas-Demirci MSC numbers : 16D40, 16D50, 16D60, 16D70, 16E30 Bull. Korean Math. Soc. 2019 Vol. 56, No. 2, 439—450
 Maps preserving Jordan and $\ast$-Jordan triple product on operator $\ast$-algebras Vahid Darvish, Mojtaba Nouri, Mehran Razeghi, Ali Taghavi MSC numbers : 47B48, 46L10 Bull. Korean Math. Soc. 2019 Vol. 56, No. 2, 451—459
 On the growth of solutions to linear complex differential equations on annuli Nan Wu, Zuxing Xuan MSC numbers : Primary 30D10; Secondary 30D20, 30B10, 34M05 Bull. Korean Math. Soc. 2019 Vol. 56, No. 2, 461—470
 Almost Cohen-Macaulayness of Koszul homology Amir Mafi, Samaneh Tabejamaat MSC numbers : 13C14, 13D07 Bull. Korean Math. Soc. 2019 Vol. 56, No. 2, 471—477
 Stochastic differential equations driven by an additive fractional Brownian sheet Oussama El Barrimi, Youssef Ouknine MSC numbers : 60G22, 60G15 Bull. Korean Math. Soc. 2019 Vol. 56, No. 2, 479—489
 On lacunary recurrences with gaps of length four and eight for the Bernoulli numbers Mircea Merca MSC numbers : 11B68, 11B37, 05E05 Bull. Korean Math. Soc. 2019 Vol. 56, No. 2, 491—499
 Conjectures that solvable groups whose character graphs having diameter 3 satisfy Qingyun Meng MSC numbers : 20C15 Bull. Korean Math. Soc. 2019 Vol. 56, No. 2, 501—504
 A note on monoform modules Alireza Hajikarimi, Ali Reza Naghipour MSC numbers : 13C05, 13C11, 13E05 Bull. Korean Math. Soc. 2019 Vol. 56, No. 2, 505—514
 Bicompressible surfaces and incompressible surfaces Toshio Saito MSC numbers : Primary 57N10 Bull. Korean Math. Soc. 2019 Vol. 56, No. 2, 515—520
 The $k$-golden mean of two positive numbers and its applications Jin Ho Choi, Young Ho Kim MSC numbers : 15B48, 26D07, 47A64, 51M04 Bull. Korean Math. Soc. 2019 Vol. 56, No. 2, 521—533
 On the intersection of $k$-Fibonacci and Pell numbers Jhon J. Bravo, Carlos A. G\'omez, Jose L. Herrera MSC numbers : 11B39, 11J86 Bull. Korean Math. Soc. 2019 Vol. 56, No. 2, 535—547
 Corrigendum to "Translation Surfaces in the 3-Dimensional Galilean Space Satisfying ${\Delta^{II}x_{i}=\lambda _{i}x_{i}}$" [Bull. Korean Math. Soc. 54 (2017), No. 4, pp. 1241--1254] Ali \c{C}akmak, Murat Kemal Karacan, Sezai Kiziltug, Dae Won Yoon MSC numbers : 53A35, 53B30, 53A40 Bull. Korean Math. Soc. 2019 Vol. 56, No. 2, 549—554