Commun. Korean Math. Soc. 1997 Vol. 0, No. 0, 829—1073
A Note on Betti Numbers and Resolutions
Sangki Choi
MSC numbers : 13D25, 18G10, 18G40
Commun. Korean Math. Soc. 1997 Vol. 12, No. 4, 829—839
A Note on Covertible $\{0, 1\}$ Matrices
Si-Ju Kim, Taeg-Young Choi
MSC numbers : 53C25
Commun. Korean Math. Soc. 1997 Vol. 12, No. 4, 841—849
$F$-Rationality of a Pure Subring of an $F$-Rational Ring
Myung In Moon
MSC numbers : 13A35
Commun. Korean Math. Soc. 1997 Vol. 12, No. 4, 851—854
The Units and Idempotents in the Group Ring of a Finite Cyclic Group
Won-Sun Park
MSC numbers : 20C05
Commun. Korean Math. Soc. 1997 Vol. 12, No. 4, 855—864
Direct Projective Modules with the Summand Sum Property
Chang Woo Han, Su Jeong Choi
MSC numbers : 16D20, 16D40
Commun. Korean Math. Soc. 1997 Vol. 12, No. 4, 865—868
Elliptic Systems Involving Competing Interactions With Nonlinear Diffusions II
In Kyung Ahn
MSC numbers : 35J60
Commun. Korean Math. Soc. 1997 Vol. 12, No. 4, 869—880
A Generalization of Silvia Class of Functions
Suk Young Lee, Myung Sun Oh
MSC numbers : Primary 30C32
Commun. Korean Math. Soc. 1997 Vol. 12, No. 4, 881—893
Julia Operators and Linear Systems
Mee Hyea Yang
MSC numbers : 47B37
Commun. Korean Math. Soc. 1997 Vol. 12, No. 4, 895—904
A Six-Point Characterization of Hilbert Spaces
Jinsik Mok
MSC numbers : 46C15
Commun. Korean Math. Soc. 1997 Vol. 12, No. 4, 905—909
On the Spectral Properties of Multipliers
Jong-Kwang Yoo
MSC numbers : Primary 47A11, Secondary 47B40
Commun. Korean Math. Soc. 1997 Vol. 12, No. 4, 911—920
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