The profile you are now visiting: Changhwa Woo. Go back to Past records to show all talks or carry out a new search.

Talks by Changhwa Woo

Real hypersurfaces with pseudo-Ricci-Bourguignon soliton in the complex two-plane Grassmannians

Pukyong National University

In this talk, we investigate a pseudo-Ricci-Bourguignon soliton on real hypersurfaces in the complex two-plane Grassmannian G2(Cm+2)G_2({\mathbb C}^{m+2}). By using pseudo-anti commuting Ricci tensor, we give a complete classification of Hopf pseudo-Ricci-Bourguignon soliton real hypersurfaces in G2(Cm+2)G_2({\mathbb C}^{m+2}) . Moreover, we have proved that there exists a non-trivial classification of gradient pseudo-Ricci-Bourguignon soliton (M,ξ,η,Ω,θ,γ,g)(M, {\xi}, {\eta}, {\Omega}, {\theta}, {\gamma}, g) on real hypersurfaces with isometric Reeb flow in the complex two-plane Grassmannian G2(Cm+2)G_2({\mathbb C}^{m+2}). In the class of contact hypersurface in G2(Cm+2)G_2({\mathbb C}^{m+2}), we prove that there does not exist a gradient pseudo-Ricci-Bourguignon soliton in G2(Cm+2)G_2({\mathbb C}^{m+2})

Seminario 1 - IMAG

Study of real hypersurfaces in complex hyperbolic two-planeGrassmannians with Ricci tensors

Pukyong National University

In this paper, we introduce a new commuting condition between the structure Jacobi operator and symmetric (1,1)-type tensor field TT, that is, RξϕT=TRξϕR_{\xi}\phi T=TR_{\xi}\phi, where T=AT=A or T=ST=S for Hopf hypersurfaces in complex hyperbolic two-plane Grassmannians. By using simultaneous diagonalzation for commuting symmetric operators, We give a complete classification of real hypersurfaces in complex hyperbolic two-plane Grassmannians with commuting condition respectively.

Seminario 2ª Planta, IEMath-GR

Generalized Tanaka-Webster Reeb parallel Ricci tensors of real hypersurfaces in complex two-plane Grassmannians

Pukyong National University

There are several kinds of classification problems for real hypersurfaces in complex two-plane Grassmannians G2(Cm+2)G_{2}(\mathbb{C}^{m+2}) Among them, Suh classified a Hopf hypersurface MM in G2(Cm+2)G_{2}(\mathbb{C}^{m+2}) with Reeb parallel Ricci tensor in Levi-Civita connection. In this paper, we introduce a new notion of generalized Tanaka-Webster Reeb parallel Ricci tensor for MM in G2(Cm+2)G_{2}(\mathbb{C}^{m+2}). Related to such a notion, we give some characterizations for a real hypersurface of Type~(A)(A) in G2(Cm+2)G_{2}(\mathbb{C}^{m+2}).

Seminario de Matemáticas, 1ª Planta

Changhwa Woo

Pukyong National University (Corea del Sur)

Number of talks
3
Number of visits
3
Last visit

If you found any mistake, please Contact us in order to correct it.

This activity is supported by the research projects EUR2024.153556, PID2023-150727NB-I00, , PID2023-151060NB-I00, PID2022-142559NB-I00, CNS2022-135390 CONSOLIDACION2022, PID2020-118137GB-I00, PID2020-117868GB-I00, PID2020-116126GB-I00.