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Bull. Korean Math. Soc. 2021 Vol. 58, No. 1, 1—267
Zero mean curvature surfaces in isotropic three-space
Jin Ju Seo, Seong-Deog Yang
MSC numbers : 53A35, 53B30
Bull. Korean Math. Soc. 2021 Vol. 58, No. 1, 1—20
Symmetry and uniqueness of embedded minimal hypersurfaces in $\mathbb R^{n+1}$
Sung-Ho Park
MSC numbers : Primary 53A10, 53C24
Bull. Korean Math. Soc. 2021 Vol. 58, No. 1, 21—30
Sharp conditions for the existence of an even $[a,b]$-factor in a graph
Eun-Kyung Cho, Jong Yoon Hyun, Suil O, Jeong Rye Park
MSC numbers : Primary 05C70, 05C40, 05C50
Bull. Korean Math. Soc. 2021 Vol. 58, No. 1, 31—46
Rings in which every element is a sum of a nilpotent and three tripotents
Jian Cui, Guoli Xia
MSC numbers : Primary 16S34, 16U99
Bull. Korean Math. Soc. 2021 Vol. 58, No. 1, 47—58
Inequalities of operator valued quantum skew information
Byoung Jin Choi, Mi Ra Lee
MSC numbers : Primary 94A17, 81P45
Bull. Korean Math. Soc. 2021 Vol. 58, No. 1, 59—70
Spectral analysis for the class of integral operators arising from well-posed boundary value problems of finite beam deflection on elastic foundation: characteristic equation
Sung Woo Choi
MSC numbers : 34B09, 47G10, 74K10
Bull. Korean Math. Soc. 2021 Vol. 58, No. 1, 71—111
On divisors computing mld's and lct's
Harold Blum
MSC numbers : 14B05
Bull. Korean Math. Soc. 2021 Vol. 58, No. 1, 113—132
Continuous orbit equivalences on self-similar groups
Inhyeop Yi
MSC numbers : 37B05, 37A20, 37C85, 20M30, 46L35
Bull. Korean Math. Soc. 2021 Vol. 58, No. 1, 133—146
Sa-supplement submodules
Y{\i}lmaz Dur\u{g}un
MSC numbers : Primary 16D10, 18G25
Bull. Korean Math. Soc. 2021 Vol. 58, No. 1, 147—161
A proof of the conjecture of Mazur-Rubin-Stein
Hae-Sang Sun
MSC numbers : 11F67
Bull. Korean Math. Soc. 2021 Vol. 58, No. 1, 163—170
On the fixing number of functigraphs
Muhammad Fazil, Imran Javaid, Muhammad Murtaza
MSC numbers : 05C25
Bull. Korean Math. Soc. 2021 Vol. 58, No. 1, 171—181
Semibricks over split-by-nilpotent extensions
Hanpeng Gao
MSC numbers : Primary 16G20, 16S90
Bull. Korean Math. Soc. 2021 Vol. 58, No. 1, 183—193
Graded uniformly $pr$-ideals
Rashid Abu-Dawwas, Mashhoor Refai
MSC numbers : Primary 13A02, 16W50
Bull. Korean Math. Soc. 2021 Vol. 58, No. 1, 195—204
Weighted norm estimates for the dyadic paraproduct with VMO function
Daewon Chung
MSC numbers : Primary 42B20, 42B25; Secondary 47B38
Bull. Korean Math. Soc. 2021 Vol. 58, No. 1, 205—215
Ding injective modules over Frobenius extensions
Zhanping Wang, Pengfei Yang, Ruijie Zhang
MSC numbers : Primary 13B02, 16G50, 18G25
Bull. Korean Math. Soc. 2021 Vol. 58, No. 1, 217—224
Subpermutable subgroups of skew linear groups and unit groups of real group algebras
Le Qui Danh, Nguyen Trung Nghia, Nguyen Kim Ngoc
MSC numbers : 16K20, 20B99
Bull. Korean Math. Soc. 2021 Vol. 58, No. 1, 225—234
Estimates for the higher order Riesz transforms related to Schr\"odinger type operators
Yanhui Wang
MSC numbers : Primary 35J10, 42B35
Bull. Korean Math. Soc. 2021 Vol. 58, No. 1, 235—251
Linearly dependent and concise subsets of a Segre variety depending on $k$ factors
Edoardo Ballico
MSC numbers : Primary 14N07, 14N05, 12E99, 12F99
Bull. Korean Math. Soc. 2021 Vol. 58, No. 1, 253—267

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