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Dive into the research topics where Yoshihiko Suyama is active.

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Featured researches published by Yoshihiko Suyama.


International Journal of Mathematics | 2007

Conformally flat hypersurfaces with cyclic guichard net

Udo Hertrich-Jeromin; Yoshihiko Suyama

We classify the 3-dimensional conformally flat hypersurfaces with cyclic principal Guichard net. The orthogonal surfaces of the cyclic system turn out to be linear Weingarten surfaces in suitable ambient space forms and we provide explicit parametrizations for the conformally flat hypersurfaces.


Osaka Journal of Mathematics | 2013

CONFORMALLY FLAT HYPERSURFACES WITH BIANCHI-TYPE GUICHARD NET

Udo Hertrich-Jeromin; Yoshihiko Suyama

We obtain a partial classification result for generic


Journal of The Mathematical Society of Japan | 2018

Curvilinear coordinates on generic conformally flat hypersurfaces and constant curvature 2-metrics

Francis E. Burstall; Udo Hertrich-Jeromin; Yoshihiko Suyama

3


Archive | 2015

Ribaucour Pairs Corresponding to Dual Pairs of Conformally Flat Hypersurfaces

Udo Hertrich-Jeromin; Yoshihiko Suyama

-dimensional conformally flat hypersurfaces in the conformal


International Journal of Mathematics | 2005

A CLASSIFICATION AND A NON-EXISTENCE THEOREM FOR CONFORMALLY FLAT HYPERSURFACES IN EUCLIDEAN 4-SPACE

Yoshihiko Suyama

4


Osaka Journal of Mathematics | 2005

Conformally flat hypersurfaces in Euclidean 4-space II

Yoshihiko Suyama

-sphere: explicit analytic data are obtained for conformally flat hypersurfaces with Bianchi-type canonical Guichard net. This is the first classification result for conformally flat hypersurfaces without additional symmetry. We discuss the curved flat associated family for conformally flat hypersurfaces and show that it descends to an associated family of conformally flat hypersurfaces. The associated family of conformally flat hypersurfaces with Bianchi-type Guichard net is investigated.


Journal of The Mathematical Society of Japan | 1991

Differentiable sphere theorem by curvature pinching

Yoshihiko Suyama

There is a one-to-one correspondence between associated families of generic conformally flat (local-)hypersurfaces in 4-dimensional space forms and conformally flat 3-metrics with the Guichard condition. In this paper, we study the space of conformally flat 3-metrics with the Guichard condition: for a conformally flat 3-metric with the Guichard condition in the interior of the space, an evolution of orthogonal (local-) Riemannian


Beiträge zur Algebra und Geometrie / Contributions to Algebra and Geometry | 2015

A duality for conformally flat hypersurfaces

Udo Hertrich-Jeromin; Yoshihiko Suyama; Masaaki Umehara; Kotaro Yamada

2


Tohoku Mathematical Journal | 1998

Explicit representation of compact conformally flat hypersurfaces

Yoshihiko Suyama

-metrics with constant Gauss curvature


Tohoku Mathematical Journal | 1995

A differentiable sphere theorem by curvature pinching II

Yoshihiko Suyama

-1

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Udo Hertrich-Jeromin

Vienna University of Technology

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Kotaro Yamada

Tokyo Institute of Technology

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Masaaki Umehara

Tokyo Institute of Technology

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