My main interests lie in commutative algebra. The basic object I study is a commutative Noetherian ring R. I have worked on concern the structure of various algebras associated with an ideal (especially the Rees algebra, R[It], and the associated graded ring), Cohen-Macaulay rings, Gorenstein rings, regular rings, and the integral closure of ideals.
Education
1985.6 ~ 1992.8 (PhD) Purdue University
1982.3 ~ 1984.2 (MSc) Sungkyunkwan University
1978.3 ~ 1982.2 (BSc) Sungkyunkwan University
Experience
2015.4 ~ 2018.3 Editor, Bulletin of the Korean Mathematical Society
2009.1 ~ 2009.8 Visiting Assistant Professor, Purdue University
2008.9 ~ 2008.12 Visiting Scholar, Purdue University
2001.3 ~ 2002.2 Visiting Scholar, Purdue University
Journal Articles
(2019)
Numerical semigroup algebras.
COMMUNICATIONS IN ALGEBRA.
48,
3
(2017)
Directed unions of local quadratic transforms of a regular local ring.
JOURNAL OF ALGEBRA.
488,
(2017)
Finitely supported *-simple complete ideals and multiplicities in a regular local ring.
JOURNAL OF ALGEBRA.
488,
(2015)
THE REES VALUATIONS OF COMPLETE IDEALS IN A REGULAR LOCAL RING.
COMMUNICATIONS IN ALGEBRA.
43,
8
(2014)
Finitely supported *-simple complete ideals in a regular local ring.
JOURNAL OF ALGEBRA.
401,
3
(2013)
Complete ideals and multiplicities in two-dimensional regular local rings.
JOURNAL OF ALGEBRA.
377,
1
(2012)
INTEGRALLY CLOSED IDEALS AND REES VALUATION.
COMMUNICATIONS IN ALGEBRA.
40,
9
(2012)
THE LEADING IDEAL OF A COMPLETE INTERSECTION OF HEIGHT TWO, PART III.
COMMUNICATIONS IN ALGEBRA.
40,
7
(2012)
Integrally closed ideals in regular local rings of dimension two.
JOURNAL OF PURE AND APPLIED ALGEBRA.
216,
1
(2011)
The Cohen-Macaulay and Gorenstein properties of rings associated to filtrations.
COMMUNICATIONS IN ALGEBRA.
39,
10
(2008)
The leading ideal of a complete intersection of height two in a2-dimensional regular local ring.
COMMUNICATIONS IN ALGEBRA.
36,
(2007)
The leading ideal of a complete intersection of height two, Part II.
JOURNAL OF ALGEBRA.
312,
2
(2006)
The leading ideal of a complete intersection of height two.
JOURNAL OF ALGEBRA.
298,
(2005)
The Gorenstein and complete intersection properties of associated graded rings.
JOURNAL OF PURE AND APPLIED ALGEBRA.
201,
1
(2005)
Some connections between an operator and its Aluthge transform.
GLASGOW MATHEMATICAL JOURNAL.
47,
(2003)
Properties of the Fiber Cone of Ideals in Local Rings.
COMMUNICATIONS IN ALGEBRA.
31,
7
(2002)
The dimension of the fiber cone..
대한수학회보.
39,
4
(2002)
Note on good ideals in Gorenstein local rings.
대한수학회보.
39,
3
(2002)
Equimultiple good ideals.
JOURNAL OF MATHEMATICS OF KYOTO UNIVERSITY.
41,
4
(2002)
Good ideals in Gorenstein local rings obtained by idealization.
PROCEEDINGS OF THE AMERICAN MATHEMATICAL SOCIETY.
130,
2
Publications
(2005)
미분적분학.
경문사.
Co-author
Honors / Awards
Visiting Scholar, Purdue University
2006.7 ~ 2008.6
Conference Paper
(2011)
Complete ideals in two-dimensional regular local rings.
Midwest Commutative Algebra and Geometry Conference.
UNITED STATES
(2006)
The leading ideal of a complete intersection of height two.
NIMS Workshop on Commutative Algebra and Related Topics.
KOREA, REPUBLIC OF
(2003)
The Gorenstein properties of associated graded rings.
Workshop on Commutative Algebra.
KOREA, REPUBLIC OF
(2000)
Equmultiple Good Ideals in Gorenstein Local Rings.
제3회 가환대수 학술대회.
KOREA, REPUBLIC OF
(1999)
Equimultiple good ideals.
21st Symposium on Commutative Algebra.
JAPAN
