YunSung Choi |
 |
|
Professor, Department of Mathematics
Pohang University of Science and Technology
Pohang, Kyungbuk, Republic of Korea
Phone: +82-54-279-2047
Office: Mathematical Science Bldg 223
e-mail: mathchoi@postech.ac.kr |
|
Research Interest:
- Functional Analysis
- Infinite Dimensional Functional Theory
Nowadays, my intersets are concentrated on the following areas :
- Polynomials and Multilinear Mappings
- Norm Attaining Non-linear Mappings
- Numerical Index of Banach Spaces
Preprints:
-
Choi, Yun Sung ; Song, Hyun Gwi
Property quasi-alpha and the denseness of norm attaining mappings.
-
Choi, Yun Sung ; Garcia, Domingo ; Kim, Sung Guen ; Maestre, Manuel
Composition, numerical range and Aron-Berner extension.
-
Choi, Yun Sung ; Garcia, Domingo ; Maestre, Manuel ; Martín, Miguel
The polynomial numerical index for some complex vector-valued function spaces.
-
Choi, Yun Sung ; Han, Kwang Hee ; Lee, Han Ju
Boundaries for algebras of holomorphic functions on Banach spaces.
-
Choi, Yun Sung ; Lee, Han Ju ; Song, Hyun Gwi
Bishop's theorem and differentiability of a subspace of Cb(K).
Publicated Papers:
[Show the list]
-
Choi, Yun Sung ; García, Domingo ; Maestre, Manuel ; Martín, Miguel
The Daugavet equation for polynomials. Studia Math. 178 (2007), no. 1, 63--82
-
Choi, Yun Sung ; Han, Kwang Hee
Boundaries for algebras of holomorphic functions on Marcinkiewicz sequence spaces. J. Math. Anal. Appl. 323 (2006), no. 2, 1116--1133
-
Choi, Yun Sung ; Garcia, Domingo ; Kim, Sung Guen ; Maestre, Manuel
The polynomial numerical index of a Banach space. Proc. Edinb. Math. Soc. (2) 49 (2006), no. 1, 39--52
-
Choi, Yun Sung ; Han, Kwang Hee ; Song, Hyun Gwi
Extensions of polynomials on preduals of Lorentz sequence spaces. Glasg. Math. J. 47 (2005), no. 2, 395--403
-
Choi, Yun Sung ; Garcia, Domingo ; Kim, Sung Guen ; Maestre, Manuel
Norm or numerical radius attaining polynomials on C(K). J. Math. Anal. Appl. 295 (2004), no. 1, 80--96
-
Choi, Yun Sung ; Kim, Sung Guen
Exposed points of the unit balls of the spaces P(2lp2) (p=1,2,∞). Indian J. Pure Appl. Math. 35 (2004), no. 1, 37--41
-
Aron, Richard M. ; Choi, Yun Sung ; Kim, Sung Guen ; Maestre, Manuel
Local properties of polynomials on a Banach space. Illinois J. Math. 45 (2001), no. 1, 25--39
-
Aron, R. ; Boyd, C. ; Choi, Y. S.
Unique Hahn-Banach theorems for spaces of homogeneous polynomials. J. Aust. Math. Soc. 70 (2001), no. 3, 387--400
-
Choi, Yun Sung ; Kim, Sung Guen ; Meléndez, Yolanda ; Tonge, Andrew
Estimates for absolutely summing norms of polynomials and multilinear maps. Q. J. Math. 52 (2001), no. 1, 1--12
-
Choi, Yun Sung ; Kim, Sung Guen
The λ-function in the space P(2l22). J. Inequal. Appl. 3 (1999), no. 3, 303--311
-
Choi, Yun Sung ; Kim, Sung Guen
Smooth points of the unit ball of the space P(2l12). Results Math. 36 (1999), no. 1-2, 26--33
-
Choi, Yun Sung ; Kim, Sung Guen
Extreme polynomials on c0. Indian J. Pure Appl. Math. 29 (1998), no. 10, 983--989
-
Choi, Yun Sung ; Kim, Sung Guen ; Ki, Haseo
Extreme polynomials and multilinear forms on l1. J. Math. Anal. Appl. 228 (1998), no. 2, 467--482
-
Alaminos, J. ; Choi, Y. S. ; Kim, S. G. ; Payá, R.
Norm attaining bilinear forms on spaces of continuous functions. Glasgow Math. J. 40 (1998), no. 3, 359--365
-
Choi, Yun Sung ; Kim, Sung Guen
The unit ball of P(2l22). Arch. Math. (Basel) 71 (1998), no. 6, 472--480
-
Choi, Yun Sung
Norm attaining bilinear forms on L1[0,1]. J. Math. Anal. Appl. 211 (1997), no. 1, 295--300
-
Choi, Yun Sung
Numerical radius of a holomorphic mapping. Geometric complex analysis (Hayama, 1995), 117--122, World Sci. Publ., River Edge, NJ, 1996
-
Choi, Yun Sung
Some results on norm attaining bilinear forms on L1[0,1]. Extracta Math. 11 (1996), no. 2, 381--383
-
Choi, Yun Sung ; Kim, Sung Guen
Norm or numerical radius attaining multilinear mappings and polynomials. J. London Math. Soc. (2) 54 (1996), no. 1, 135--147
-
Aron, R. M. ; Choi, Y. S. ; Llavona, J. G.
Estimates by polynomials. Bull. Austral. Math. Soc. 52 (1995), no. 3, 475--486
-
Choi, Yun Sung ; Kim, Sung Guen
Polynomial properties of Banach spaces. J. Math. Anal. Appl. 190 (1995), no. 1, 203--210
-
Choi, Yun Sung ; Kim, Sung Guen
Boundary behaviour of a lifted holomorphic mapping. Proc. Roy. Irish Acad. Sect. A 94 (1994), no. 1, 127--132
-
Choi, Yun Sung ; Kim, Sung Guen
Compact diagonal linear operators on Banach spaces with unconditional bases. Internat. J. Math. Math. Sci. 16 (1993), no. 4, 823--824
-
Aron, R. M. ; Choi, Y. S. ; Louren, M. L. ; Paques, O. W.
Boundaries for algebras of analytic functions on infinite-dimensional Banach spaces. Banach spaces (Mérida, 1992), 15--22, Contemp. Math., 144, Amer. Math. Soc., Providence, RI, 1993
-
Choi, Yun Sung
ELB holomorphic factorization over projective limit representations. Portugal. Math. 47 (1990), no. 3, 331--339
-
Choi, Yun Sung
Spaces of holomorphic mappings on locally convex spaces. Portugal. Math. 45 (1988), no. 3, 273--293
-
Choi, Yun Sung
Concerning conditions for holomorphic factorization and uniform holomorphy. J. Math. Anal. Appl. 135 (1988), no. 2, 611--614
-
Choi, Yun Sung
A generalization of Cartan's uniqueness theorem on locally convex spaces. Bull. Korean Math. Soc. 25 (1988), no. 1, 1--4
Teaching:
Present Semester :
- math510 Complex Analysis - 2007 Fall
- math111 Calculus I - 2007 Spring
- math514 Real Analysis I - 2007 Spring
Past Semesters : (Click)
Usefull Links:
|