WorldCat Identities

Nishikawa, Seiki

Overview
Works: 47 works in 109 publications in 3 languages and 908 library holdings
Genres: Conference papers and proceedings 
Roles: Author, Editor, Inventor, Contributor, Other
Classifications: QA614.73, 514.74
Publication Timeline
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Most widely held works by Seiki Nishikawa
Variational problems in geometry by Seiki Nishikawa( Book )

12 editions published between 2000 and 2002 in English and held by 261 WorldCat member libraries worldwide

Lectures on geometric variational problems by Seiki Nishikawa( Book )

16 editions published in 1996 in English and German and held by 183 WorldCat member libraries worldwide

The field of geometric variational problems, that is, nonlinear problems arising in geometry and topology from the point of view of global analysis, has developed very rapidly in the last decade. It was therefore felt timely to produce a set of presentations on this subject in which leading experts would provide general surveys of current research from the fundamentals to the most recent results with a view to future research. This volume will interest both mature researchers and graduate students concerned with gauge theory and low dimensional topology, theory of harmonic maps, minimal surfaces, and minimal submanifolds in Riemannian manifolds
Minimal surfaces, geometric analysis and symplectic geometry( Book )

8 editions published between 2001 and 2002 in English and held by 108 WorldCat member libraries worldwide

Geometry and global analysis : report of the First MSJ International Research Institute, July 12-23, 1993, Tohoku University, Sendai, Japan by MSJ International Research Institute( Book )

11 editions published between 1993 and 1994 in English and Japanese and held by 71 WorldCat member libraries worldwide

On the reversion phenomena of Cu-3% Ti alloys by Kazuhiro Nagata( Book )

1 edition published in 1988 in English and held by 68 WorldCat member libraries worldwide

A study on the precipitation and reversion behaviors of Cu-0.3% Cr alloy by the step annealing method by Kazuhiro Nagata( Book )

1 edition published in 1988 in English and held by 67 WorldCat member libraries worldwide

Proceedings of the Fifth Pacific Rim Geometry Conference : held at Tohoku University, Sendai, Japan, from July 25 to July 28, 2000 by 2000, Sendai, Miyagi-ken) Pacific Rim Geometry Conference (5( Book )

7 editions published in 2001 in English and held by 21 WorldCat member libraries worldwide

Kikagakuteki henbun mondai by Seiki Nishikawa( Book )

4 editions published between 1998 and 2006 in Japanese and held by 10 WorldCat member libraries worldwide

Area properties of television pictures by Seiki Nishikawa( Book )

1 edition published in 1964 in English and held by 10 WorldCat member libraries worldwide

Area size distributions are measured for four different still pictures formed of 510 x 512 elements linearly quantized to eight amplitude levels (3 bits). The initial results of this continuing measurement program indicate that for the measured pictures: (1) First order brightness distributions tend to be uniform; (2) the largest number of areas occur for the intermediate grey levels, with considerably fewer areas encountered at either black or white; (3) the average size of black or white areas is larger than for the intermediate greys; (4) black and white areas appear to be more simply connected than intermediate grey areas; (5) the frequency of occurrence of areas of size n-elements falls off with n a little slower than 1/sq n; (6) the area size distributions for each picture appear quite similar; the greatest difference between them are in the area size range 20-200 elements, and in the presence or absence of one or two very large areas. From the data reported it is concluded that at least half of the discrete brightness areas in the picture have doubtful visual significance. (Author)
Tōchō chizu wa naze dekinai : chizu to sekkenmaku no sūgaku by Seiki Nishikawa( Book )

2 editions published in 2014 in Japanese and held by 4 WorldCat member libraries worldwide

Nonlinear processing of radar returns in MTI systems by Rand Corporation( Book )

3 editions published between 1965 and 1968 in English and held by 3 WorldCat member libraries worldwide

An analysis of the effect of two nonlinear devices for processing coherent radar returns on the performance of a moving-target indication (MTI) system. A linear MTI processor--the optimum detector for moving targets when clutter is homogeneous gaussian process--is not optimum when clutter is a nonhomogeneous process, as is typical of terrain, where clutter amplitude varies widely between resolution cells. Some constant false-alarm rate (CFAR) technique must be used to prevent ground clutter from causing false alarms or low signal detectability. One method of achieving CFAR is by amplitude limiting before MTI cancellation. This study analyzes, quantitatively, the degradation in performance due to limiting, assuming a homogeneous clutter model. The analysis shows that a hard limiter, which destroys all amplitude information, severely degrades the system performance when the ground clutter has a Rayleigh amplitude distribution. A partial limiter, followed by an MTI canceller, is a better choice. (Author)
Homogeneous Kähler Einstein manifolds of nonpositive curvature operator by Wakako Obata( Book )

1 edition published in 2007 in English and held by 3 WorldCat member libraries worldwide

Kikagaku( Book )

2 editions published in 2002 in Japanese and held by 3 WorldCat member libraries worldwide

Constructions of harmonic maps between Hadamard manifolds by Keisuke Ueno( Book )

1 edition published in 2001 in English and held by 2 WorldCat member libraries worldwide

Isometric pluriharmonic immersions of Kähler manifolds into semi-Euclidean spaces by Hitoshi Furuhata( Book )

1 edition published in 1995 in English and held by 2 WorldCat member libraries worldwide

Tōkei( Book )

1 edition published in 2007 in Japanese and held by 2 WorldCat member libraries worldwide

Non-isotropic harmonic tori in complex projective spaces and configurations of points on Riemann surfaces by Tetsuya Taniguchi( Book )

1 edition published in 1999 in English and held by 2 WorldCat member libraries worldwide

On maximal spacelike hypersurfaces in a Lorentzian manifold by Seiki Nishikawa( Book )

3 editions published in 1983 in Undetermined and English and held by 2 WorldCat member libraries worldwide

Kyoritsu koza nijuisseiki no sugaku( Book )

1 edition published in 2014 in Japanese and held by 2 WorldCat member libraries worldwide

Dirichlet problem at infinity for harmonic maps by Daishi Watabe( Book )

1 edition published in 2000 in English and held by 2 WorldCat member libraries worldwide

 
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Variational problems in geometry
Alternative Names
Nishikawa, S.

Nishikawa, S. 1948-

Nishikawa, S. (Seiki)

Nishikawa, Seiki

Nishikawa, Seiki 1948-

Seiki Nishikawa.

Seiki Nishikawa 1948-....

ニシカワ, セイキ

ニシカワ, セイキ 1948-

西川 青季 1948-....

西川青季

Languages
English (64)

Japanese (11)

German (1)

Covers
Minimal surfaces, geometric analysis and symplectic geometry