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연구논문
논문명 발표학술지명 Vol No PP 발행연도
U-Hang Ki, On certain submanifolds of condimension 2 of a locally Fubinian manifold Kodai Math. Sem. Rep., (Japan) 01월 24일 17-27 1972
Kentaro Yano and U-Hang Ki, On quasi-normal (f,g,u,v,λ)-structures Kodai Math. Sem. Rep., (Japan) 01월 24일 106-120 1972
Shigeru Ishihara and U-Hang Ki, Complete Riemannian manifolds with (f,g,u,v,λ)-structure J. Diff. Geom. (U.S.A.) 08월 04일 541-554 1973
U-Hang Ki and Hyun Bae Suh, On hypersurfaces with normal (f,g,u(k),α(k))-structure in an even-dimensional sphere Kodai Math. Sem. Rep., (Japan) 04월 26일 424-437 1975
Kentaro Yano, U-Hang Ki and Masafumi Okumura, Infinitesimal variations of invariant submanifolds of of a Kaehlerian manifold Kodai Math. J., (Japan) 01월 01일 89-100 1978
Kentaro Yano, U-Hang Ki and Jin Suk Pak, Infinitesimal variations of the Ricci tensor of a submanifold Kodai Math. Sem. Rep., (Japan) 03월 29일 271-284 1978
Kentaro Yano and U-Hang Ki, On (f,g,u,v,w,λ,μ,ν)-structure satisfying λ²+μ²+ν²=1 Kodai Math. Sem. Rep., (Japan) 03월 29일 285-307 1978
U-Hang Ki,? Jin Suk Pak and Young Ho Kim, Generic submanifolds of a complex projective space with parallel mean curvature vector Kodai Math. J., (Japan) 04월 01일 137-151 1981
U-Hang Ki and Jin Suk Pak, Generic submanifolds of an even-dimensional Euclidean space J. Diff. Geom., (U.S.A.) 16 293-303 1981
U-Hang Ki and Young Ho Kim, Generic submanifolds with parallel mean curvature vector of an odd-dimensional sphere Kodai Math. J., (Japan) 04월 03일 353-370 1981
U-Hang Ki and Young Ho Kim, Submanifolds of complex space forms admitting an almost contact metric compound structure Annali di Mat., (Itally) CXLIII-IV 339-962 1986
U-Hang Ki and Hisao Nakagawa, Submanifolds with harmonic curvature in a Riemannian manifold of constant curvature Tsukuba J. Math., (Japan) 10월 02일 285-292 1986
U-Hang Ki and Hisao Nakagawa, A characterization of the Cartan hypersurface in a sphere Tohoku Math. J., (Japan) Jan-39 27-40 1987
U-Hang Ki and Hisao Nakagawa and Masaaki Umehara, On complete hypersurfaces with harmonic curvature Tsukuba J. Math., (Japan) 11월 01일 61-76 1987
U-Hang Ki, Masumi Kameda and Seiichi Yamaguchi, Compact totally real submanifolds with parallel mean curvature vector field in a Sasakian space form TRU Math., (Japan) 01월 23일 01월 15일 1987
Seiichi Yamaguchi, U-Hang Ki and Shuka Ayabe, On conformal p-forms in a Riemannian manifold with boundary J. Ramanujan Math. Soc., (India) 02월 01일 17-41 1987
U-Hang Ki, Cyclic-parallel real hypersurfaces of a complex space form Tsukuba J. Math., (Japan) 12월 01일 259-268 1988
U-Hang Ki, Real hypersurfaces with parallel Ricci tensor of a complex space form Tsukuba J. Math., (Japan) 01월 13일 73-81 1989
U-Hang Ki, Compact Kaehlerian manifolds with positive hybrid symmetric curvature operator J. Korean Math. Soc. 01월 26일 111-115 1989
U-Hang Ki, Hyang Sook Kim and Hisao Nakagawa, A characteriazation of a real hypersurface of type B Tsukuba J. Math., (Japan) 01월 14일 09월 26일 1990
U-Hang Ki, Hisao Nakagawa and Young Jin Suh, Real hypersurfaces with Harmonic Weyl tensor of a complex space form Hiroshima Math. J., (Japan) 01월 20일 93-102 1990
U-Hang Ki and Young Jin Suh, On real hypersurfaces of a complex space form Math. J. Okayama Univ., (Japan) 32 207-221 1990
U-Hang Ki, He-Jin Kim and Hisao Nakagawa, On space-hypersurfaces with constant mean curvature of a Lorentz space form Tokyo J. Math., (Japan) 01월 14일 205-216 1991
U-Hang Ki and Young Ho Kim, Complete and non-compact conformally flat manifolds with constant scalar curvature Geometriae Dedicata, (Germany) 40 45-52 1991
U-Hang Ki and Masahiro Kon, Contact CR-submanifolds with parallel mean curvature vector of a Sasakian space form Colloq. Math., (Poland) 64 173-184 1993
U-Hang Ki and Masahiro Kon, CR submanifolds with parallel mean curvature vector of a complex space form Academia Pelor. dei Peri., (Italy) LXX 173-192 1994
U-Hang Ki and Ryoichi Takagi, Real hypersurfaces in Pn(C) with constant principal curvatures Math. J. Okayama Univ., (Japan) 34 233-240 1994
U-Hang Ki and Young Jin Suh, On a characterization of real hypersurfaces of type A in a complex space form Canadian Math. Bull., (Canada) 20 01월 07일 1994
U-Hang Ki and Young Ho Kim, Surfaces of Euclidean spaces with simple geodesic through a point J. of Geometry, (Germanay) 51 67-78 1994
U-Hang Ki and Nam-Gil Kim, Ruled real hypersurfaces of a complex space form Acta Math. Sinica, (China) 10월 04일 401-409 1994
Eun-Seo Choi, U-Hang Ki and Kazuhiko Takano, Sasakian manifolds with vanishing C-Bochner curvature tensor Acta Math. Hungar., (Hungary) Apr-66 327-336 1995
Jong Taek Cho and U-Hang Ki, CR structures on real hypersurfaces of a complex projective space Balkan J. Geom. Appl. (Rumania) 02월 01일 07월 18일 1997
Jong Taek Cho and U-Hang Ki, Real hypersurfaces of a complex projective space in terms of the Jacobi operators Acta Math. Hungar., (Hungary) 80 155-167 1998
Jong Taek Cho and U-Hang Ki, Jacobi operators on real hypersurfaces of a complex projective space Tsukuba J. Math., (Japan) 01월 22일 145-156 1998
Jong Taek Cho and U-Hang Ki, Real hypersurfaces of a complex projective space satisfying a pointwise nullity condition Tsukuba J. Math., (Japan) 23 279-291 1999
U-Hang Ki, Hyunjung Song and Ryoichi Takagi, Submanifolds of codimension 3 admitting almost contact metric structure in a complex projective space Nihonkai Math. J.,(Japan) 11월 01일 57-86 2000
Yeong-Wu Choe, U-Hang Ki and Ryoichi Takagi, Compact minimal generic submanifolds with parallel normal section in a complex projective space Osaka J. Math., (Japan) 37 489-499 2000
U-Hang Ki, Makoto Kimura and Sadahiro Maeda, Geometry of holomorphic distributions of real hypersurfaces in a complex projective space Czech. Math. J., (Czechoslovak) 51 197-204 2001
U-Hang Ki and Hyunjung Song, Jacobi operators on a semi-invariant submanifold of codimension 3 in a complex projective space Nihonkai Math. J., (Japan) 14 01월 16일 2003
U-Hang Ki, Setsuo Nagai and Ryoichi Takagi, Real hypersurfaces in nonflat complex space forms concerned with the structure Jacobi operator and Ricci tensor, "Topics in Almost Hermitian Geometry and the Related Fields Proceed. in honor of K. Sekigawas60th birthday, World Scientific 85-96 2005
U-Hang Ki, Soo Jin Kim and Seong-Baek Lee, The structure Jacobi operator on real hypersurfaces in a nonflat complex space form Bull. Korean Math. Soc. Feb-42 337-358 2005
U-Hang Ki and Setsuo Nagai, Real hypersurfaces on a nonflat complex space form in terms of the Ricci tensor Tsukuba J. Math., (Japan) 29 511-532 2005
U-Hang Ki, Chunji Li and Setsuo Nagai, Real hypersurfaces in complex space forms whose shape operator commutes with the structure Jacobi operator Toyama Math. J., (Japan) 28 55-79 2005
U-Hang Ki, Juan de Dois Pe'rez, Florentino G. Santos and Young Jin Suh, Real hypersurfaces in complex space forms with ε-parallel Ricci tensor and structure Jacobi operator J. Korean Math. Soc. Feb-44 307-326 2007
U-Hang Ki and Huili Liu, Some characterizations of real hypersurfaces of type (A) in a nonflat complex space form Bull. Korean Math. Soc. Jan-44 157-172 2007
U-Hang Ki, Setsuo Nagai and Ryoichi Takagi, Structure Jacobi operators of real hypersurfaces with constant scalar curvature in a complex space form Tokyo J. Math., (Japan) Feb-40 441-454 2007
Jong Taek Cho and U-Hang Ki, Real hypersurfaces in complex space forms with Reeb flow symmetric Jacobi operator Canadian Math. Bull., (Canada) 51 359-371 2008
U-Hang Ki and Young Jin Suh, Real hypersurfaces in a complex hyperbolic space with commuting Ricci tensor Kyungpook Math. J. Mar-48 433-442 2008
U-Hang Ki, Dong-Soo Kim, Young Ho Kim and Young-Mee Roh, Surfaces of revolution with pointwise 1-type Gauss map in Minkoski 3-space Taiwanes J. Math., (Taiwan) 01월 13일 317-338 2009
U-Hang Ki, Hiroyuki Kurihara and Ryoichi Takagi, Jacobi operators along the structure flow on real hyperesurfaces in a nonflat complex space form Tsukuba J. Math., (Japan) Jan-33 39-56 2009
U-Hang Ki and Setsuo Nagai, The Ricci tensor and structure Jacobi operator of real hypersurfaces in a complex projective space J. of Geometry, (Netherlands) 94 123-142 2009
U-Hang Ki and Hiroyuki Kurihara, Real hypersurfaces and ℇ-parallel structure Jacobi operators in complex space forms J. Korean Academy Sciences 53-78 2009
U-Hang Ki and Hiroyuki Kurihara, Real hypersurfaces with cyclic-parallel structure Jacobi operators in a nonflat complex space form Bull. Aust. Math. Soc. 260-273 2010
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