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157) 2018, December 6-8, KSCV Workshop, KIAS Three lectures on Constrained Pfaff equations 156) 2018, September 6th, Fall Meeting of KMS, COEX Constraint Pfaffian systems 155) 2018, March 15th, Geometry seminar of Korea Universtiy Conservation laws 154) Korean Soc. for History of Math. Symmetry of differential equations 153) 2017, March 31st KAIST, 정오의 수학산책 Symmetry, invariants and conservation laws 152) 2016, October 22, KMS Fall, SNU Cartan-Kaehler theory by reduction of Pfaffian systems 151) 2016, July 4, KSCV Symposium, Gyeong-Joo, Invariant submanifolds for vector fields and quasi-linear Cauchy-Riemann equations 150) 2016, April, KMS, Spring Meeting, April 22, Suwon, Applied Math Session Controllability for the systems that are linear in controls with variable coefficients 149) 2015, March, Pusan National Universtiy, Colloquium, Complex Analysis of 19th Century 148) 2014, August 14, International Congress of Mathemeticians-Seoul, Short communications, Quasi-linear perturbations of Cauchy-Riemann equations for several variables 147) 2014, May 22, International conference on complex analysis and geomtry, Wuhan, China Generalized Frobenius theorem and the Cartan-Kaehler theory
146) 2014, April 25, KMS Spring Meeting, Gangneung Generalizations of the Frobenius theorem on involutivity and an application to the controlability problem
145) 2013, October 26, KMS Fall Meeting Cauchy data of higher codimensions for quasi-linear PDE systems of first order
144) 2013, June 24, Wuhan University, China Conservation laws for boundaries
143) 2013, June 18, Conference on non-linear analysis and geometry, Fujian Normal University, China Method of characteristics for quasi-linear systems of first order
142) 2013, March 28, Trinity College, Dublin Generalized Frobenius theorem and applications
141) 2013. March 21, Trinity College, Dublin, Colloquium, Conservation laws for the boundary
140)
2012, July 20th, KSCV Symposium 9, Gyeongju, Generalized
Frobenius theorems and overdetermined PDE systems
139) 2012, February 27th, CR geometry workshop, KIAS Title: Geometry of Levi-forms associated with the existence of complex submanifolds and the minimality
138) 2011, November 30th, UC-San Diego, Title: Reduction of Pfaffian systems and conservation laws
137) 2011, November 29th, UC-Irvine, Analysis Seminar, Title: Reduction of Pfaffian systems and conservation laws
136)
2011, September 26th, Title: Reduction of Pfaffian systems and conservation laws
135)
2011, April 30th, KMS Spring Title:
Algebraic generalizations of the Newlander-Nirenberg theorem 134) 2011, April 25th, UC-Irvine, Analysis Seminar Title:
Quasi-linear Cauchy-Riemann equations 133) 2011, March 3rd, KIAS/SNU International Conference on Complex
and Symplectic Geometry, on the occasion of Prof. Dan Burns' 65th
birthday, February
28-March 3, Title: Quasi-linear system of first order PDE 132) 2011.
January 25th, 16th KSCV
Workshop, Quasi-linear system of first order PDEs 131) 2010, November 5th, Analysis Seminar, Perturbation of the Cauchy-Riemann equations 130) 2010, October 23rd, KMS Fall Meeting, Boundaries of invariant domains of control
systems given by vector fields 129) 2010, June 7-8, Three lectures at Symmetry of differential equations and
conservation laws 128) 2010, January 18th, 복소수는 왜 사용하는가, 자연대탐방 고교생을 위한 강연 127) 2009, December 21, Erwin Schroedinger Institute, Wien Partial integrability of almost complex
structures 126) 2009,
November 20th, Chonnam
Nat. U. Invited
talk Integrability
questions for almost
complex structures 125) 2009,
November 4th, In between Newlander-Nirenberg and
Nijenhuis-Woolf theorems 124) 2009,
October 28th, Kyungpook
Nat. U. Invited
talk Partial integrability of almost complex
structures 123) 2009.
October 15th, 제목: 복소함수론의 역사 122) 2009, September 25th, Postech Colloquium Title: Notion of first integral and its
complex analogues 121) 2009, August 30th, Geometry Symposium, Title: Partial integrability of almost complex
structures 120) 2009, July 7th, International Conference on Several Complex Variables,
Complex Geometry and Partial Differential Equations, Title: Partial integrability of almost complex
structures 119) 2009, April 27th, International Workshop on Geometric structures
and equivalence problems, at KIAS, Title: Generalized Frobenius theorems and solvability
questions of first order
PDE systems 118) 2009, April
25th, Korean
Math. Society Meeting at Ajou Univ., Title: Generalized Frobenius theorems and solvability
questions of first order
PDE systems 117) 2009, April 10th, Title: Minimality of generic CR manifolds 116) 2009, March
18th, Kyungpook
Nat. Univ., Colloquium
for undergraduate students Title: History of complex analysis 복소함수론의 역사 115) 2009, Feb 26-27, Korea Institute for Advanced Study, Series of talks Titles: 1. G-structures of Frobenius type 2. Foliations associated with Pfaffian systems 3. Solvability of overdetermined PDE systems 114) 2009, Feb 12th, Title: Foliations associated with Pfaffian system 113) 2009, Feb 6th, Rutgers Univ - Title: Frobenius theorem on involutivity 112) 2009, Feb 5th, Rutgers Univ - Title: Frobenius theorem on involutivity 111) 2009, Jan 29th, Univ of Illinois, Geometry seminar Title: Foliations associated with Pfaffian systems 110) 2008, October 23rd, KMS Fall Meeting, Jaejoodo Title: Foliations associated with Pfaffian systems 109) 2008,
August 7, Conference on parabolic geometry, Title: Existence of complex
submanifolds and minimality of CR structures 108) 2008, July
22, Title: Generalized Frobenius theorems 107) 2008, July 4th, Title: Generalized Frobenius theorem and minimality
of generic CR manifolds 106) 2008, April 30th, KIAS, Complex geometry seminar Title: Complex versions of Frobenius involutivity 105) 2008. April 26, KMS Spring Meeting, Title: Minimality of generic real submanifolds 104) 2008, April 2, Kyungbuk National Univ, Colloquium for Undergraduates Title: 군론과 기하학의 역사 (Group theory and history of
geometry) 103) 2008, February 22, Title: Integrable submanifolds in almost complex
manifolds 102) 2008,
January 29th, 2nd Pusan-Pohang
joint seminar on SCV, Postech Title: Generalized Frobenius theorem 101) 2007,
October 20th, Fall
Meeting of Korean Math. Soc., KAIST Title: Integrable submanifolds in almost complex
manifolds 100) 2007, July
6th, Gyeong-Ju, KSCV8 International Conference on SCV Title: A generalization of the Frobenius theorem and
its applications: Integrable submanifolds in almost complex manifolds 99) 2007, June 15th, Title: Complex submanifolds in real
hypersurfaces 98) 2007, May 26th, 영재 중고교생을 위한 서울대 토요과학교실, 3시간 강의 제목: 수학사의 관점에서 본 복소함수 97) 2007, April 21st, Korean Math. Soc. Spring Meeting, Special Session on SCV, 96) 2007, April 20th, Provance-Postech Joint Workshop on Complex
Geometry, Postech Title: Generalized Frobenius theorem and its
applications 95) 2007, February 16th, Scuola Normale Superiore, Title: Notions of involutivity 94) 2007, January 5th and 9th, Hanoi University of Education, Overdetermined PDE
systems, I, II 93) 2006, October 28th, Korean Math. Soc. Fall Meeting, Special Session on SCV Title: Complex hypersurfaces in CR manifolds 92) 2006, October 20th, POSTECH Complex Analysis Seminar TItle: Involutive PDE systems 91) 2006, October 18th, KIAS Colloquium Title: Notions of involutivity 90) 2006, September 5th, ICM Satellite Conference on CR geometry and
PDE, Title: Symmetry algebra for multi-contact structures 89) 2006, August 2nd, IMA Summer School, Symmetries and overdetermined systems of
partial differential equations, Title: Pfaffian systems of Frobenius type and
solvability of generic overdetermined PDE systems, 88) 2006, April 30th, BIRS Conference on CR geometry, Title: Symmetry algebra of multi-contact structures
given by $2n$ vector
fields 87) 2006, April 22nd, Korean Math. Soc. Spring Meeting, Special Session on SCV, 동아대 Symmetry algebra for integral curves of even
number of vector fields 86) 2006, February 7th, International Conference on CR geometry (2/7-10), Organizer: Gerd Schmalz Title: Symmetry algebra for integral curves of even number of vector fields 85) 2005, July 25th, International Conference on Several Complex
Variables (7/20-25), on the occasion of Professor Sheng Gong's 75th
birthday, Hefei (合肥),
China. Compatibility conditions and existence of solutions for overdetermined system of linear PDE's of first order 84) 2005, June 11th, 서강대학교, Complex Geometry Symposium, Overdetermined linear systems of first order: examples 83) 2005, May 6th, 제목: 수학자와 기독교의 영성 82) 2005, April 23rd, Korean Math. Soc. Spring Meeting, Analysis Session, 단국대학교 천안 Compatibility conditions and solvability of
overdetermined systems of linear pde's of first order 81) 2005, April 14th, 제목: Moving frames 80) 2004, December 27th, CUNY, Dimension bound of nondegenerate multi-contact
structures 79) 2004, November 15th, Postech, Complex Geometry Seminar Finiteness
results in CR and contact geometry 78) 2004, November 9th, KIAS, Complex
Geometry Seminar Finiteness
of generalized contact maps 77) 2004, April 30th,
Solvability of overdetermined pde systems and CR embeddibility into spheres 76) 2004, February 25th, Method of
Moving Frames 75) 2003, June 18th, 서울대학교 수리과학부 TA Workshop, 미적분 발달사 74) 2003, May 22nd, 인하대 Math
Colloquium, Pfaffian Systems 73) 2003, March 23rd,
Quasi-linear Pfaffian System 72) 2002, December 6th, Postech, Complex analysis seminar
Overdetermined PDE systems 71) 2002, August 14th, 경주, KSCV 6 (8/14-18), Local solvability of generic overdetermined
PDE systems and some results in CR geometry 70) 2002, July 31st, 신라대학교 10th Conference on
Finite or Infinite Dimensions
(7/29-8/2), Local solvability of generic overdetermined
PDE systems and some results in CR geometry 69) 2002, July 8th, 권경환수학워크숍, 내장산관광호텔 Some
problems in CR geometry 68) 2002, June 14th, KAIST Math Colloquium E.
Cartan's geometry and overdetermined pde systems 67) 2002, May 24th, Postech, Workshop on SCV Method of
moving frames 66) 2002, April 19th, 황준묵 교수 과학상 수상 축하 강연, 고등과학원
E.
Cartan's method for overdetermined pde systems 65) 2001, July 27th, 44th Complex Analysis Symposium, CR
equivalence for higher codimensions 64) 2001, July 5th, 5th KSCV, KIAS , Local
solvability of generic overdetermined pde systems 63) 2001, June 27th, International conference on complex analysis,
고려대학교,
Holomorphic equivalence of real submanifolds 62) 2001, May 17th, Seoul National Univ. Math Colloquium, Overdetermined pde system and complex analysis
61) 2001, April 21st, Korean Math. Soc. Spring Meeting, Analysis Session, 동의대학교,
Integrability of overdetermined pde system and
equivalence of CR manifolds of higher codimensions 60) 2001, January 31st, Integrability of overdetermined pde systems
and the CR embedding problem 59) 2001, January 22nd, Integrability of overdetermined pde systems
and the CR embedding problem 58) 2000,
September 26th, Local isometric embedding of Riemannian
manifolds 57) 2000, March 23rd, Complete prolongation of tangential
Cauchy-Riemann equations 56) 1999, October 22nd, Korean Math. Soc. Fall Meeting, Analysis
Session, 원광대학교, Finite determination of pseudoconformal
mappings in nonanalytic categories 55) 1999, August 14th , Finite determination of pseudoconformal
mappings 54) 1999, February 8th, Some analytic aspects of the theory of
invariants 53) 1998, October 15th, 成功(Cheng-Kung) University (Taiwan), Initesimal deformations of embeddings;
conformal and CR cases 52) 1998, August 28th, 대한수학회 학술상 수상기념강연, 제주대학교
Infinitesimal deformations of embeddings:
conformal and CR cases 51) 1998, August 12th, International Conference on CR geometry (Satellite Conf to Berlin ICM) Rigidity of immersions; conformal and CR cases
50) 1998, July 27th, 안동대학교,
Korea-China-Japan Conf on Finite and Infinite dimensions Complete differential system and the rigidity
of CR mappings 49) 1998, July 14th, KIAS, Complex analysis seminar, Discontinuities in Bochner-Martinelli integral
48) 1998, April 17th, 중앙대학교,
Math Colloquium Infinitesimal deformations of embeddings;
conformal and CR cases 47) 1998, February 19th, Infinitesimal deformation of embeddings;
conformal and CR cases 46) 1996, June 19th, 전남대학교,
International Conf of SCV Extension of proper holomorphic mappings 45) 1996, April 27th, 충남대학교,
Korean Math. Soc. Spring
Meeting, Analysis Session Complete differential systems for CR mappings 44) 1996, January 9th, Orlando, AMS Annual
Meeting, Special Session on Several Complex Variables, Complete differential system for CR mappings 43) 1995, December 22nd, 1995, Hayama, Complete differential system for CR embeddings
42) 1995, December 20th, Complete differential system for CR mappings 41) 1995, July 31st, 이화여자대학교, Korea-China-Japan Conf on Finite and Infinite Dimensions, Rigidity of embeddings 40) 1995, Feburary 24th, 부산대학교, SCV mini-conference, Prolongation of tangential Cauchy-Riemann
equations 39) 1994, December 19th, on the occasion of Professor M. Kuranishi's 70th birthday, Infinitesimal symmetries of isometric
embeddings 38) 1994, December 16th, Infinitesimal
symmetries of isometric embeddings 37) 1994, October 28th, 이화여자대학교, Math Colloquium,
Local geometric invariants 36) 1994, August 24th, Beizing, Academia Sinica, Local geometric invariants 35) 1994, March 4th, Local geometric invariants 34) 1994, February 17th, Seoul National U. GARC Symposium, E. Cartan's method of equivalence 33) 1993, July 12th, 부산,
Korea-Japan Conf on Finite and Infinite dimensions Symmetry of
differential equations and local
CR invariants 32) 1993, February 9th, Symmetry of differential equations and
Conservation laws 31) 1993, February 8th, Complete differential systems 30) 1993, January 21st, Rigidity of hypersurfaces 29) 1992, October 30th, 전북대학교, Math Colloquium Symmetry of differential equations 28) 1992, October 17th, 국민대학교,
Korean Math. Soc. Fall Meeting, Analysis Session Rigidity of hypersurfaces (with C.K. Cho and
J.N. Yoo) 27) 1992, October 2nd, 경북대학교, Math Colloquium
Jet approach of PDE's arising from geometry 26) 1992, April, 수원(성균관대학교), Korean Math. Soc. Spring Meeting, Analysis Session, Complete differential systems (with C.K. Cho) 25) 1992, February 17th, A method of
prolongation and holomorphic extension of CR functions 24) 1991, October 25th, Postech, Math Colloquium Extension of holomorphic mappings 23) 1991, October 18th, 강원대학교, Korean Math.
Soc. Fall Meeting, Analysis Session Asymptotic hypersurfaces (with C.K. Cho) 22) 1991, April 27th, 육군사관학교, Korean Math. Soc. Spring Meeting, Analysis Session Ellipticity of isometric embeddings (with C.K.
Cho) 21) 1990, August 17th, Ellipticity of local isometric embeddings 20) 1990, July, Los Angeles, AMS Summer Institute, UCLA, Ellipticity of local isometric embeddings 19) 1990, April, 인하대학교, Korean Math. Soc. Spring Meeting, Analysis Session Invariants of certain system of first order
pde's 18) 1989, October, 포항공대, Korean Math. Soc. Fall Meeting, Invited talk, Holomorphic extension of CR functions 17) 1989, August, 대전, 제4회 KIT Workshop Rigidity of isometric immersions 16) 1989, July, Santa Cruz, AMS Summer Institute, Prolongation of differential systems 15) 1989, April, KAIST Math Colloquium, Tangential Cauchy-Riemann equations 14) 1989, March, Rigidity of CR manifolds 13) 1988, October 28th, Lawrence ( Special Session on Differential Geometry Prolongation
of differential systems and CR geometry 12) 1988, April 24th, Special Session on Several Complex Variables Regularity of isometric immersions 11) 1987, October, Geometry of CR manifolds 10) 1987, August 8th, Regularity and uniqueness of isometric
immersions 9) 1986, October, Logan (Utah State Univ.), 828th AMS Meeting, Special Session on Differential Geometry Regularity
of mappings of G-structures 8) 1986, July, KAIST ( Regularity of mappings of G-structures 7) 1986, July, 이화여자대학교, 대우순수수학 워크숍, Invited talk, Regularity of mappings of G-structures 6) 1984, February, tangential Cauchy-Riemann equations 5) 1983, February, Tangential Cauchy-Riemann equations 4) 1982, November, Special Session on Several Complex Variables Analyticity
of CR equivalences 3) 1981, October, Analyticity of CR equivalences 2) 1981, July, Analyticity
of CR equivalences 1) 1981, January, Institute for Advanced Studies, Analyticity of CR equivalences |
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