A5101575725- Geometric Analysis and Curvature Flows
- Advanced Differential Geometry Research
- Point processes and geometric inequalities
- Geometry and complex manifolds
- Semiconductor Lasers and Optical Devices
- Luminescence Properties of Advanced Materials
- Surface Roughness and Optical Measurements
- Advanced Optical Imaging Technologies
- Advanced optical system design
- Perovskite Materials and Applications
- Advanced Numerical Analysis Techniques
- Near-Field Optical Microscopy
- Organometallic Complex Synthesis and Catalysis
- Phase-change materials and chalcogenides
- Customer Service Quality and Loyalty
- Mathematics and Applications
- GaN-based semiconductor devices and materials
- Nonlinear Partial Differential Equations
- Topological and Geometric Data Analysis
- Chemical Synthesis and Reactions
- Advanced Topics in Algebra
- Semiconductor Quantum Structures and Devices
- Technology and Data Analysis
- Holomorphic and Operator Theory
- Structural Behavior of Reinforced Concrete
Kyungpook National University
2014-2023
Kumoh National Institute of Technology
2019
Gachon University
2019
Sungkyunkwan University
2016-2018
Yeungnam University
2016
Gyeongsang National University
2013
Dongguk University
2010
Hanbat National University
2010
Samsung (South Korea)
1995-2002
University of Chicago
2000
Abstract In this paper, we establish two sharp inequalities for the normalized δ -Casorati curvatures of submanifolds in a Kenmotsu space form, tangent to structure vector field ambient space.Moreover, show that both cases equality at all points characterizes totally geodesic submanifolds.
To model the Zr−olefin interaction in as-yet unobserved (C5R5)2Zr(R)(olefin)+ intermediates (C5R5)2Zr(R)+-catalyzed olefin polymerization, coordination of tethered vinyl group (C5R5)2Zr(OCMe2(CH2)nCHCH2)+ species has been investigated. The reaction (C5H5)2Zr(OCMe2CH2CH2CHCH2)(Me) with B(C6F5)3 or [Ph3C][B(C6F5)4] yields chelated complex (C5H5)2Zr(OCMe2CH2CH2CHCH2)+ as MeB(C6F5)3- (12a) B(C6F5)4- (12b) salts. In contrast, (C5H5)2Zr(OCMe2CH2CHCH2)(Me) CD2Cl2 adduct...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTHydroesterification of Olefins Catalyzed by Pd(OAc)2 Immobilized on MontmorilloniteChul Woo Lee and Howard AlperCite this: J. Org. Chem. 1995, 60, 1, 250–252Publication Date (Print):January 1995Publication History Published online1 May 2002Published inissue 1 January 1995https://pubs.acs.org/doi/10.1021/jo00106a042https://doi.org/10.1021/jo00106a042research-articleACS PublicationsRequest reuse permissionsArticle Views812Altmetric-Citations60LEARN...
In this paper, we prove two optimal inequalities involving the intrinsic scalar curvature and extrinsic Casorati of submanifolds real space forms endowed with a semi-symmetric metric connection. Moreover, show that in both cases, equality at all points characterizes invariantly quasi-umbilical submanifolds. MSC:53C40, 53B05.
In this paper, we prove two optimal inequalities involving the intrinsic scalar curvature and extrinsic Casorati of submanifolds generalized space forms endowed with a semi-symmetric metric connection. Moreover, also characterize those for which equality cases hold.
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTInfluence of 1,4-Bis(diphenylphosphino)butane on the Hydroformylation .alpha.,.beta.-Unsaturated Esters Catalyzed by Zwitterionic, Cationic, and Neutral Rhodium(I) Complexes. The Asymmetric .alpha.-Methylene-.gamma.-ButyrolactoneChul Woo Lee Howard AlperCite this: J. Org. Chem. 1995, 60, 3, 499–503Publication Date (Print):February 1, 1995Publication History Published online1 May 2002Published inissue 1 February...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPalladium-catalyzed synthesis of N,N'-diphenylurea from nitrobenzene, aniline, and carbon monoxideJae Seung Oh, Sang Moo Lee, Jong Kee Yeo, Chul Woo Jae Sung LeeCite this: Ind. Eng. Chem. Res. 1991, 30, 7, 1456–1461Publication Date (Print):July 1, 1991Publication History Published online1 May 2002Published inissue 1 July 1991https://pubs.acs.org/doi/10.1021/ie00055a009https://doi.org/10.1021/ie00055a009research-articleACS PublicationsRequest reuse...
With a pair of conjugate connections ∇ and * , we derive optimal Casorati inequalities with the normalized scalar curvature on submanifolds statistical manifold constant curvature.
In this paper, we define translation surfaces in the 3-dimensional Heisenberg group <TEX>$\mathcal{H}_3$</TEX> obtained as a product of two planar curves lying planes, which are not orthogonal, and study minimal <TEX>$\mathcal{H}_3$</TEX>.
In this paper we give a new proof for two sharp inequalities involving generalized normalized δ-Casorati curvatures of slant submanifold in quaternionic space form. These were recently obtained Lee and Vîlcu (Taiwan. J. Math. 19(3):691-702, 2015) using an optimization procedure by showing that quadratic polynomial the components second fundamental form is parabolic. The analyzing suitable constrained extremum problem on submanifold.
Reductive desulfonylation of α-nitro sulfones to give the corresponding nitro compounds was carried out conveniently with sodium dithionite, by using octylviologen as an electron-transfer catalyst in organic solvent–water two-phase systems. Sulfones which do not have group are desulfonylated. A reaction scheme involving a nitroalkyl radical has been proposed.
A statistical structure is considered as a generalization of pair Riemannian metric and its Levi-Civita connection. With conjugate connections ∇ * in the Sasakian structure, we provide normalized scalar curvature which bounded above from Casorati curvatures on C-totally real (Legendrian slant) submanifolds manifold constant φ -sectional curvature. In addition, give examples to show that total space sphere.
Rotational surfaces in the pseudo-Galilean 3-space $G_3^1$ have some types according to pseudo-Euclidean rotations and isotropic rotations. We study rotational with a log-linear density investigate $\phi $-minimal surfac