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 Commun. Korean Math. Soc. 2019 Vol. 34, No. 4, 1049—1388Download front and back covers
 Computing fuzzy subgroups of some special cyclic groups Babington Makamba, Michael M. Munywoki MSC numbers : Primary 20N25, 03E72; Secondary 20K01, 20K27 Commun. Korean Math. Soc. 2019 Vol. 34, No. 4, 1049—1067
 Strong $P$-cleanness of trivial Morita contexts Mete B. Calci, Sait Halicioglu, Abdullah Harmanci MSC numbers : 13C99, 16D80, 16U80 Commun. Korean Math. Soc. 2019 Vol. 34, No. 4, 1069—1078
 Some branching formulas for Kac--Moody Lie algebras Kyu-Hwan Lee, Jerzy Weyman MSC numbers : 13C99, 13H10 Commun. Korean Math. Soc. 2019 Vol. 34, No. 4, 1079—1098
 Centralizing and commuting involution in rings with derivations Abdul Nadim Khan MSC numbers : 16N60, 16W10, 16W25 Commun. Korean Math. Soc. 2019 Vol. 34, No. 4, 1099—1104
 Generalizations of number-theoretic sums Narakorn Rompurk Kanasri, Patchara Pornsurat, Yanapat Tongron MSC numbers : 11A25 Commun. Korean Math. Soc. 2019 Vol. 34, No. 4, 1105—1115
 A combinatorial approach to asymptotic behavior of Kirillov model for $GL_2$ Yusuf Danisman MSC numbers : Primary 11F70, 11F85 Commun. Korean Math. Soc. 2019 Vol. 34, No. 4, 1117—1133
 Computation of the matrix of the Toeplitz operator on the Hardy space Young-Bok Chung MSC numbers : Primary 47B35, 30C40 Commun. Korean Math. Soc. 2019 Vol. 34, No. 4, 1135—1143
 A note on the value distribution of differential polynomials Subhas S. Bhoosnurmath, Bikash Chakraborty, Hari M. Srivastava MSC numbers : Primary 30D30, 30D20, 30D35 Commun. Korean Math. Soc. 2019 Vol. 34, No. 4, 1145—1155
 A remark on convergence theory for iterative processes of Proinov contraction Ravindra K. Bisht MSC numbers : Primary 47H09, 54E50; Secondary 47H10, 54E40 Commun. Korean Math. Soc. 2019 Vol. 34, No. 4, 1157—1162
 Convexity of integral operators generated by some new inequalities of hyper-Bessel functions Muhey U. Din MSC numbers : Primary 30C45, 33C10; Secondary 30C20, 30C75 Commun. Korean Math. Soc. 2019 Vol. 34, No. 4, 1163—1173
 A $p$-deformed $q$-inverse pair and associated polynomials including Askey scheme Rajesh V. Savalia MSC numbers : Primary 33D15, 33D45, 33D65 Commun. Korean Math. Soc. 2019 Vol. 34, No. 4, 1175—1199
 Some fixed point results for TAC-Suzuki contractive mappings Akindele A. Mebawondu, Oluwatosin T. Mewomo MSC numbers : 47H09, 47H10, 49J20, 49J40 Commun. Korean Math. Soc. 2019 Vol. 34, No. 4, 1201—1222
 On complete monotonicity of linear combination of finite psi functions Bai-Ni Guo, Feng Qi MSC numbers : Primary 26A48; Secondary 33B15, 44A10 Commun. Korean Math. Soc. 2019 Vol. 34, No. 4, 1223—1228
 $k^{th}$-order essentially slant weighted Toeplitz operators Anuradha Gupta, Shivam Kumar Singh MSC numbers : Primary 47B35; Secondary 47B38 Commun. Korean Math. Soc. 2019 Vol. 34, No. 4, 1229—1243
 On growth properties of transcendental meromorphic solutions of linear differential equations with entire coefficients of higher order Nityagopal Biswas, Sanjib Kumar Datta, Samten Tamang MSC numbers : 34M10, 30D35 Commun. Korean Math. Soc. 2019 Vol. 34, No. 4, 1245—1259
 Inequalities and complete monotonicity for the gamma and related functions Chao-Ping Chen, Junesang Choi MSC numbers : Primary 33B15, 26A48 Commun. Korean Math. Soc. 2019 Vol. 34, No. 4, 1261—1278
 Some results in $\eta$-Ricci soliton and gradient $\rho$-Einstein soliton in a complete Riemannian manifold Chandan Kumar Mondal, Absos Ali Shaikh MSC numbers : Primary 53C15, 53C21, 53C44, 58E20, 58J05 Commun. Korean Math. Soc. 2019 Vol. 34, No. 4, 1279—1287
 Some results on almost Kenmotsu manifolds with generalized $(k,\mu)'$-nullity distribution Uday Chand De, Gopal Ghosh MSC numbers : Primary 53C15, 53C25 Commun. Korean Math. Soc. 2019 Vol. 34, No. 4, 1289—1301
 Characterization of warped product submanifolds of Lorentzian concircular structure manifolds Shyamal Kumar Hui, Tanumoy Pal, Laurian Ioan Piscoran MSC numbers : 53C15, 53C25, 53C40 Commun. Korean Math. Soc. 2019 Vol. 34, No. 4, 1303—1313
 Certain results on contact metric generalized $(\kappa,\mu)$-space forms Aruna Kumara Huchchappa, Devaraja Mallesha Naik, Venkatesha Venkatesha MSC numbers : 53C15, 53C25, 53B20 Commun. Korean Math. Soc. 2019 Vol. 34, No. 4, 1315—1328
 A note on expansive $\mathbb{Z}^k$-action and generators Ekta Shah MSC numbers : Primary 37B99; Secondary 54H20 Commun. Korean Math. Soc. 2019 Vol. 34, No. 4, 1329—1334
 The logarithmic Kumaraswamy family of distributions: properties and applications Zubair Ahmad MSC numbers : Primary 60E05, 62F10 Commun. Korean Math. Soc. 2019 Vol. 34, No. 4, 1335—1352
 Modified Lagrange functional for solving elastic problem with a crack in continuum mechanics Robert V. Namm, Georgiy I. Tsoy, Gyungsoo Woo MSC numbers : 65F10, 65K10, 49M15, 74G15, 74G65 Commun. Korean Math. Soc. 2019 Vol. 34, No. 4, 1353—1364
 Long-time behavior of solutions to a nonlocal quasilinear parabolic equation Le Thi Thuy, Le Tran Tinh MSC numbers : 35B41, 35D30, 35K65 Commun. Korean Math. Soc. 2019 Vol. 34, No. 4, 1365—1388