 Educations
 1987University of Iowa(Ph. D. Mathematics)
 1982Seoul National University (M. Sc. Mathematics)
 1980Seoul National University (B. Sc. Mathematics)
Professional Experience
 198909199008:Univeristy of Rome I, ¹æ¹®±³¼ö
 198408198707:Iowa University, TA
 198210198408:¿ï»ê´ëÇÐ±³, ÀüÀÓ°»ç
 198003198203:¼¿ï´ëÇÐ±³, TA
Fields of Specialization
 Commutative Algebra : Mulitiplicative Ideal Theory

 Journal Papers
 A note on ideals which are maximal among nonvaluation ideals, J. KMS, Vol.
27, No. 1 (1990), 15.
 Some questions about Prfer vmultiplication domains,
Comm. Algebra, Vol. 17, No.13(1989), 553564.
 Prfer vmultiplication domains and the ring R[X]Nv,
J. Algebra, Vol. 123, No. 2 (1989),151170.
 On the converse of a wellknown fact about Krull domains,
J. Algebra, Vol. 124, No. 2 (1989), 284299.
 PseudoDedekind domains and divisorial deals in R[X]T,
J. Algebra, 122 (1989), 323336 with D.D. Anderson).
 A Characterization of Krull rings with zero divisors,
J. Pure and Appl. Algebra, 72 (1991), 3338.
 Integral closure of rings with zero divisors, J. Algebra,
Vol. 162, No. 2 (1993), 317323.
 Content formulas for polynomials and power series and
complete integral closure, J. Algebra, Vol. 181 (1996),
8294 (with D.D. Anderson).
 Lifting up an infinite chain of prime ideals to a valuation
ring, Proc. AMS, Vol. 126, No. 3 (1998), 645646 (with
D.Y. Oh).
 Formally integrally closed domains and the rings R((x))
and R{{x}}, J. Algebra, Vol. 200 (1998), 347362 (with
D.D. Anderson).
 AntiArchimedean
rings and power series rings, Comm. Algebra 26 (1998), 32233238
(with D.D.Anderson and M.H. Park).
 A localization of a power series ring over a valuation
domain, J.P.A.A. 140 (1999) , 107124 (with
M.H Park).
 Completion
of a Prfer domain, J.P.A.A. 140 ( 1999) , 125134
(with M.H. Park).
 When
are the prime ideals of R[X]T extended from R?, Houston
J. Math.,Vol. 26, No. 1 (2000) , 6781
 Characterizations
of Krull rings with zero divisors, J.P.A.A. 146 (2000) ,
283290
 Divisibility
properties of group rings over torsionfree abelian groups,
Comment. Math. Univ. St. Pauli., Vol.48, No.1 (1999),
1924
 On
Mockor's question, J. Algebra 216 (1999), 481510 (with
M.H. Park).
 On Krull overrings of a Marot ring whose regular ideals
are finitely generated, Comm. Algebra 28(5) (2000)
, 25332542 (with G.W. Chang)
 On Eakin's question, preprint (with M.H. Park).
 Completion
of a globalized pseudovaluation domain, preprint (with
M.H. Park).
 Integral closure of a ring whose regular ideals are
finitely generated, preprint (with G.W.Chang).
 Polynomial rings and power series rings over a Noetherian
ring, preprint (with D.Y. Oh).
