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This is Ji Young Kim's personal blog open on Dec 30, 2007.
Ji Young Kim (김지영, 金志榮) is
a teaching professor at the Faculty of Liberal Education,
Seoul National University (SNU).
( This profile is updated in June. 15. 2021 )
Mailing Address:
Department of Mathematical Sciences, Seoul National University,
1 Gwanak-ro, Gwanak-gu, Seoul,
08826, Korea.
E-mail:
jykim (at) kias.re.kr (official e-mail)
jykim98 (at) snu.ac.kr, (official e-mail)
jykim (at) math.snu.ac.kr
jiyoung_kim (at) hanmail.net (private e-mail)
jykim.math (at) gmail.com
Research Subjects:
Number Theory (Arithmetic theory of quadratic forms and lattices)
MathSci
Zentralblatt Math
http://zbmath.org/?q=(kim,+ji+young)
Google Scholar
https://scholar.google.com/citations?hl=ko&user=pIiGE_gAAAAJ&view_op=list_works&sortby=pubdate
ResearchGate
https://www.researchgate.net/profile/Ji_Young_Kim17
Scopus
http://lps3.www.scopus.com.libproxy.snu.ac.kr/authid/detail.uri?authorId=55862552900
ORCID
https://orcid.org/0000-0001-6718-8720
Mathematics Genealogy Project:
http://genealogy.math.ndsu.nodak.edu/id.php?id=115663
Awards:
2019.03 Teaching Excellence Award, College of Natural Sciences, Seoul National University.
Grant Received:
Basic Science Research Program through the National Research Foundation of Korea (NRF)
funded by the Ministry of Education (NRF-2020R1I1A1A01053318);
for the project entitled “1-Universal Hermitian lattices”;
effective dates 2020.06.01 - 2024.05.31.
Basic Science Research Program through the National Research Foundation of Korea (NRF)
funded by the Ministry of Education (NRF-2017R1D1A1B03028905);
for the project entitled “Research on strictly universal quadratic forms”;
effective dates 2017.06.01 - 2020.05.31.
Basic Science Research Program through the National Research Foundation of Korea (NRF)
funded by the Ministry of Education, Science and Technology (NRF-2010-0023321);
for the project entitled “Research on strictly regular quadratic forms”;
effective dates 2010.09.01 - 2012.08.31.
Publication List-Books:
친절한 수론 길라잡이 (A Friendly Introduction to Number Theory)
김병찬, 김지영, 이종규, 박부성 공역, 경문사 2015
ISBM 978-89-6105-888-9
우리 모두의 수학자 오일러 (Euler, The master of us all)
김영주, 김지영 공역, 경문사 2016
ISBN 978-89-6105-966-4
Publication List-Research Articles:
[27] Integral quadratic forms avoiding exactly one geometric progression.
B. M. Kim and J.Y. Kim
On process
[26] On Graham partitions twisted by the Legendre symbol
B. Kim, J.Y. Kim, C.G. Lee, S. J. Lee, P.-S. Park and Y. K. Park
Open Math. 2023, Vol 21(1) math-2023-0134 (2023 October 26)
ISSN: 2391-5455
DOI : https://doi.org/10.1515/math-2023-0134
[25] On the existence of Graham partitions with congruence conditions
B. Kim, J.Y. Kim, C.G. Lee, S. J. Lee and P.-S. Park
Bull. Korean Math. Soc. 2022; 59(1): 15-25 (2022 January 31)
pISSN: 1015-8634 / eISSN: 2234-3016
DOI : https://doi.org/10.4134/BKMS.b200730
[24] Almost regular binary Hermitian lattices over imaginary quadratic fields.
B.M. Kim, and J.Y. Kim
On process.
[23] Integral quadratic forms avoiding arithmetic progressions.
A.G. Earnest and J.Y. Kim
International Journal of Number Theory, vol: 16, pages: 2141 - 2148 (2020 November)
ISSN (print): 1793-0421, ISSN (online): 1793-7310
DOI : https://doi.org/10.1142/S1793042120501109
[22] The strictly universal quadratic Z-lattices.
J.Y. Kim
In process.
[21] On the partitions into squares whose reciprocal sum is one.
B. Kim, J.Y. Kim, C.G. Lee, and P.-S. Park
Publicationes Mathematicae Debrecen, vol: 95, pages: 243-247 (2019 August)
print: ISSN 0033 - 3883, online: ISSN 2064 - 2849
[20] Multiplicative functions additive on polygonal numbers.
B. Kim, J.Y. Kim, C.G. Lee, and P.-S. Park
Aequat. Math. 95, 601–621 (2021 August).
Electronic ISSN1420-8903, Print ISSN0001-9054
DOI : http://lps3.doi.org.libproxy.snu.ac.kr/10.1007/s00010-021-00824-8
[19] 1-universal binary and ternary Hermitian lattices over imaginary quadratic fields.
B.M. Kim, and J.Y. Kim
The Ramanujan Journal, vol: 55 (2), pages: 673-696 (2021 June)
Print: ISSN (Online) 1572-9303, ISSN(Print) 1382-4090,
DOI: https://doi.org/10.1007/s11139-020-00290-x
[18] Multiplicative functions additive on generalized pentagonal numbers.
B. Kim, J.Y. Kim, C.G. Lee, and P.-S. Park
Comptes Rendus Mathematique, vol: 356., pages: 125-128 (2018 February).
ISSN: 1631-073X DOI: https://doi.org/10.1016/j.crma.2017.12.011
[17] A simple proof for Ji-Kim-Oh's theorem.
B.M. Kim and J.Y. Kim
Korean J. Math. vol: 31, pages: 181-188 (2023 June),
DOI: https://doi.org/10.11568/kjm.2023.31.2.181
[16] Sums of nonvanishing integral squares in real quadratic fields.
B.M. Kim and J.Y. Kim
Journal of Number Theory, vol: 177, pages: 497-515 (2017 August ).
ISSN: 0022-314X, DOI: 10.1016/j.jnt.2017.01.006
[15] The strictly regular diagonal quaternary quadratic Z-lattices.
A. G. Earnest, J.Y. Kim and N.D. Meyer
The Ramanujan Journal, Vol: 37, pages 563-571 (2015, August)
ISSN: 1382-4090, Online ISSN 1572-9303, DOI 10.1007/s11139-014-9647-7
[14] Strictly regular quaternary quadratic forms and lattices.
A. G. Earnest, J.Y. Kim and N.D. Meyer
Journal of Number Theory, vol: 144, pages: 256-266 (2014 November) video abstract,
ISSN 0022-314X, DOI http://dx.doi.org/10.1016/j.jnt.2014.04.023
[13] Strictly universal positive definite integral quadratic forms
J.Y. Kim
On process
[12] Strictly regular diagonal positive definite quaternary integral quadratic forms.
A. G. Earnest and J.Y. Kim
Contemporary Mathematics, vol: 587, pages 69-75 (2013)
ISBNs: 978-0-8218-8318-1 (print); 978-0-8218-9503-0 (online), DOI: http://dx.doi.org/10.1090/conm/587
[11] Infinitely many regular subnormal binary Hermitian lattices over imaginary quadratic fields.
B.M. Kim, J.Y. Kim, and P.-S. Park.
East Asian Mathematical Journal vol: 28, Issue 03, pages 333-337 (2012 May)
ISSN 1226-6973, DOI: http://dx.doi.org/10.7858/eamj.2012.28.3.333
[10] Sums of distinct integral squares in $\mathbb{Q}(\sqrt{2})$, $\mathbb{Q}(\sqrt{3})$ and $\mathbb{Q}(\sqrt{6})$.
J.Y. Kim and Y.M. Lee.
Bulletin of the Australian Mathematical Society vol: 85, Issue 01, pages 1-10 (2012 February)
ISSN 0004-9727, EISSN 1755-1633, DOI:10.1017/S0004972711002607
[9] Classification of binary 2-subnormal regular Hermitian lattices.
B.M. Kim, J.Y. Kim, and P.-S. Park.
On process
[08] Kloosterman problem for binary Hermitian lattices.
B.M. Kim, J.Y. Kim and P.-S. Park.
Abh. Math. Semin. Univ. Hambg. Vol: 84, Issue 1, pages 17-29 (2014 April)
ISSN(Online) 1865-8784, ISSN(Print) 0025-5858, DOI 10.1007/s12188-013-0088-9
[07] Even universal binary Hermitian lattices over imaginary quadratic fields.
B.M. Kim, J.Y. Kim, and P.-S. Park.
Forum Mathematicum Vol: 23, Issue 6, pages 1189-1201 (2011 November)
ISSN(Online) 1435-5337, ISSN(Print) 0933-7741, DOI: 10.1515/FORM.2011.043
[06] Complete classification of binary normal regular Hermitian lattices.
B.M. Kim, J.Y. Kim, and P.-S. Park.
Journal of the Mathematical Society of Japan Vol: 63, Number 3, pages 1001-1025 (2011 July)
ISSN 0025-5645, DOI: 10.2969/jmsj/06331001
[05] On infinitude of new almost 2-universal diagonal forms of rank 6.
J. Y. Kim.
Submitted.
[04] On almost 2-universal diagonal senary lattices.
J.Y. Kim.
Ph.D. thesis.
[03] Fifteen theorem for universal Hermitian lattices over imaginary quadratic fields.
B.M. Kim, J.Y. Kim, and P.-S. Park.
Mathematics of Computation Vol:79, Number: 270, pages: 1123-1144 (2010 April)
ISSN 1088-6842(e), ISSN 0025-5718(p), DOI: 10.1090/S0025-5718-09-02287-X
[02] Finiteness results for regular definite ternary quadratic forms over $\mathbb{Q}(\sqrt{5})$.
W.K. Chan, A. G. Earnest, M.I. Icaza, and J.Y. Kim.
International Journal of Number Theory Vol: 3, Issue: 4, pages: 541-556 (2007 December)
ISSN(Print) 1793-0421, ISSN(Online) 1793-7310, DOI: 10.1142/S1793042107001103
[01] Quaternary 2-regular lattices of square-free discriminant.
J.Y. Kim.
M.S. thesis.
Talks:
[35] Aug. 23, 2019,
"1-universal Hermitian lattices over imaginary quadratic fields"
2019 the 15th KWMS International Conference
Seoul National University(SNU), Seoul Korea.
[34] April. 19, 2019,
"1-universal Hermitian lattices over imaginary quadratic fields"
Kangwon National University(KNU), Chuncheon Korea.
[33] Jan. 07, 2019,
"1-universal Hermitian lattices over imaginary quadratic fields"
Conference on the Arithmetic Theory of Quadratic Forms
Seoul National University (SNU), Seoul, Korea.
[32] Feb. 18, 2017,
"Sums of nonvanishing integral squares in real quadratic fields"
Joint Korea-Singapore Workshop on Discrete Mathematics
Nanyang Technological University (NTU), Singapore.
[31] Feb. 07, 2017,
"Euler and Number Theory (오일러와 수론)"
KIAS, Seoul, Korea.
[30] Jul. 02. 2015,
"Sums of nonvanishing integral squares in real quadratic fields"
2015 KWMS The 11th International Conference
KAIST, Daejeon, Korea.
[29] Dec. 22. 2014,
"Sums of nonvanishing integral squares in real quadratic fields"
KIAS, Seoul, Korea.
[28] Feb. 06. 2014,
"Quadratic forms with strictly regular properties"
31th Algebra Camp
SolBeach Hotel, Sonyang-Myeon, Yangyang-Gun, Gangwon-Do, Korea.
[27] Dec. 23. 2013,
"The strictly regular quaternary quadratic Z-lattices"
I-Days: Introductory Workshop
KIAS, Seoul, Korea.
[26] Dec. 13. 2013,
"The strictly regular quaternary quadratic Z-lattices"
SNU-HU Joint Symposium, International relation of young researchers in algebra and related fields,
SNU, Seoul, Korea.
[25] Jun. 20. 2013,
"Strictly regular positive definite quaternary forms and lattices"
2013 The 10th KWMS International Conference
KIAS, Seoul, Korea.
[24] Nov. 29. 2012,
"Strictly regular positive definite quaternary forms"
KIAS Number Theory Seminar,
KIAS, Seoul, Korea.
[23] Oct. 6. 2012,
"Strictly regular quaternary integral quadratic forms"
2012 Annual Meeting of the Korean mathematical society,
Daejeon Convention Center, Daejeon, Korea.
[22] Jul. 12. 2012,
"Can you hear the quadratic forms?"
28th SNU Algebra Camp,
Alpensia, Daegwallyeong-Myon, Pyeongchang-Gun, Gangwon-Do, Korea.
[21] Jun. 29. 2012,
"Strictly regular diagonal positive definite quaternary integral quadratic forms"
2012 The Youngnam Mathematical Society,
Kumoh National University of Technology, Gumi, Gyeongbuk, Korea.
[20] Feb. 16. 2012,
"Fifteen theorem and Kloosterman problem for Hermitian lattices"
Department of Mathematics Colloquium, video,
Southern Illinois University, Carbondale, IL. USA.
[19] Sep. 03, 2011,
"The Kloosterman problem for Hermitian lattices"
The 47th algebraic combinatorics,
Yeungnam University, Daegu, Korea.
[18] Dec. 16, 2010,
"Representations of Binary regular Hermitian lattices"
2010 The first Joint Meeting AMS-SOMACHI,
Pucon, Chile.
[17] Jan. 23, 2010,
"Representations of Binary regular Hermitian lattices"
2010 Korea-Japan Number Theory Seminar at Seoul,
SNU, Seoul, Korea.
[16] Dec. 16, 2009,
"The Kloosterman problem for Hermitian lattices"
2009 Joint Meeting of the KMS and the AMS,
Ewha Woman's University, Seoul, Korea.
[15] Jun. 19, 2009,
"Infinitely many regular subnormal binary Hermitian lattices"
6th KWMS International Conference, A Leap for the future of Women in Mathematics,
KIAS, Seoul, Korea.
[14] Dec. 03, 2008,
"Finiteness theorems for Hermitian lattices and Kloosterman problem"
KAIST ASARC Seminar,
KAIST, Daejeon, Korea.
[13] Oct. 30, 2008,
"Finiteness theorems for Hermitian lattices and Kloosterman problem"
KIAS Number Theory Seminar,
KIAS, Seoul, Korea.
[12] Jul. 31, 2008,
"Finiteness theorems for representability of Hermitian lattices and Kloosterman problem"
The 16th International Conference on Finite or Infinite Dimensional Complex Analysis and Applications,
Dongguk University, Gyeongju, Korea.
[11] Jun. 26, 2008,
"Finiteness theorems for representability of Hermitian lattices and Kloosterman problem"
SNU Algebra Camp,
Chunan, Korea.
[10] Jun. 17, 2008,
"Finiteness theorems for representability of Hermitian lattices and Kloosterman problem"
5th International Conference for Women in Mathematics,
Ewha Woman's University, Seoul, Korea.
[09] May. 10, 2007,
“Recent developments of universal and regular Hermitian lattices”
KIAS Number Theory Seminar,
KIAS, Seoul, Korea.
[08] Feb. 06, 2007
“Complete list of binary regular Hermitian lattices over imaginary quadratic fields”
SNU Algebra Camp,
Chunan, Korea.
[07] Feb. 01, 2007
“Complete list of binary regular Hermitian lattices over imaginary quadratic fields”
KAIST Number Theory Conference,
KAIST, Daejeon, Korea.
[06] Oct. 29, 2006
“On regular binary Hermitian lattices over $\mathbb{Q}(\sqrt{-m})$”
KMS fall meeting,
SNU, Seoul, Korea.
[05] Mar. 23, 2006 ;
"On almost universal lattices"
KIAS Number Theory Seminar,
KIAS, Seoul, Korea.
[04] Feb. 01, 2006
"On almost 2-universal diagonal senary lattices"
SNU Algebra Camp,
Chunan, Korea.
[03] Jun. 22, 2004
"Finiteness for regular forms over $\mathbb{Q}(\sqrt{5})$"
1st International Workshop for Women in Mathematics,
KIAS, Seoul, Korea.
[02] Oct. 11, 2003
“Finiteness for regular forms over $\matthbb{Q}(\sqrt{5})$"
Joint Symposium between Seoul National University & Hokkaido University,
SNU, Seoul, Korea.
[01] Aug.11, 2003
“Finiteness for regular definite ternary quadratic lattices over $\mathbb{Q}(\sqrt{5})$”
SNU Algebra Camp,
Chunan, Korea.
Education:
03/1998-02/2001 Seoul National University, Seoul, Korea
M.S., Mathematics, College of natural science.
Thesis advisor: Kim, Myung-Hwan.
Thesis title: Quaternary 2-regular lattices of square-free discriminant.
03/2001-02/2006 Seoul National University, Seoul, Korea
Ph.D., Mathematics, College of natural science.
Thesis advisor: Kim, Myung-Hwan.
Thesis title: On Almost 2-universal diagonal senary lattices.
Experience:
09/2010-Now
Seoul National University, Seoul, Korea
Faculty of General Education, Teaching Professor.
09/2008-08/2010
Korea Institute for Advanced Study (KIAS), Seoul, Korea
School of Mathematics, Research Fellow.
09/2007-08/2008
Seoul National University, Seoul, Korea
Department of mathematics, Post Doctor.
10/2006- 08/2007
National Institute for Mathematical Sciences (NIMS), Daejeon, Korea
Division of fundamental mathematics, Post Doctor.
03/2004-02/2006
Seoul National University, Seoul, Korea
Department of mathematics, Teaching Assistant: Calculus1, Calculus2. / Grading Assistant: Algebra.
08/2003-02/2004
Seoul National University, Seoul, Korea
Faculty of General Education, Teaching Assistant: General education.
08/2002-07/2003
Southern Illinois University, Carbondale, IL. U.S.A
Department of mathematics, Visiting Scholar supported by BK21.
Co-work with Professor Andrew G. Earnest. / Participate in Algebra Seminar.
03/1999-06/2002
Seoul National University, Seoul, Korea
Department of mathematics, Teaching Assistant: Calculus1, 2. / Grading Assistant: Linear Algebra.
Other Experience:
09/2008 - 08/2010
KIAS Number Theory Group
03/2009 - 08/2009
KIAS Number Theory Seminar Organizer
