OKUMURA Hiroshi

Last updated: Apr 3, 2014 at 21:00
 
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Name
OKUMURA Hiroshi
Alternative names
OH002508
E-mail
okumura.hiroshiyamato-u.ac.jp
Affiliation
Former Maebashi Institute of Technology
Section
Faculty of Engineering, Department of Life Science and Information, Department of Life Science and Information
Job title
Head Librarian, Professor
Degree
Ph.D. (Mathematics)(Bulgarian Academy of Sciences)

Research Interests

 
 

Research Areas

 
 

Education

 
 
 - 
1999
Bulgarian Academy of Sciencies
 
 
 - 
1977
Graduate School, Division of Natural Science, Okayama University
 
 
 - 
1974
Faculty of Education, Gunma University
 

Published Papers

 
Lamoenian Circles of the Collinear Arbelos
Hiroshi Okumura
KoG   17 9-13   Jan 2014   [Refereed]
Archimedean twin circles in the arbelos
Hiroshi Okumura
Mathematical Gazette   97(540) 512-512   Nov 2013   [Refereed]
Archimedean circles of the collinear arbelos and the skewed arbelos
Hiroshi Okumura
Journal for Geometry and Graphics   17(1) 31-52   Jul 2013   [Refereed]
The area of a generalised arbelos
Hiroshi Okumura
Mathematical Gazette   97(538) 157-160   Mar 2013   [Refereed]
Are those Archimedean triplet circles really triplets?
Hiroshi Okumura
Normat   60(1) 9-14   2012   [Refereed]
Ubiquitous Archimedean Circles of the Collinear Arbelos
Hiroshi Okumura
KoG   16 17-20   2012   [Refereed]
Dilations and the arbelos
Hiroshi Okumura
Normat   60(1) 4-8   2012   [Refereed]
Archimedean Circles Induced by Skewed Arbeloi
NAKAJIMA Ryuichi OKUMURA Hiroshi
Journal for Geometry and Graphics   16 13-17   2012   [Refereed]
More on Twin Circles of the Skewed Arbelos
Hiroshi Okumura
Forum Geometricorum   11 139-144   2011   [Refereed]
Generalized arbelos in aliquot parts: non-intersecting case
Hiroshi Okumura and Masayuki Watanabe
Journal for Geometry and Graphics   13 41-57   2009   [Refereed]
Non-Archimedean Twin Circles of the Arbelos
Hiroshi Okumura and Masayuki Watanabe
Mathematics Plus   16(3) 63-64   2008
Generalized arbelos in aliquot parts: intersecting case
Hiroshi Okumura and Masayuki Watanabe
Journal for Geometry and Graphics   12 53-62   2008   [Refereed]
Characterizations of an infinite set of Archimedean circles
Hiroshi Okumura and Masayuki Watanabe
Forum Geometricorum   7 121-123   2007   [Refereed]
Remarks on Woo's Archimedean circles
Hiroshi Okumura and Masayuki Watanabe
Forum Geometricorum   7 125-128   2007   [Refereed]
The arbelos, mathematics and computer graphics
Hiroshi Okumura and Masayuki Watanabe
Proceedings of the twelfth Asian technology conference in mathematics   20-30   2007   [Refereed]
A generalization of Power's Archimedean circles
Hiroshi Okumura and Masayuki Watanabe
Forum Geometricorum   6 103-105   2006   [Refereed]
The arbelos in Tex-aliquot parts
Hiroshi Okumura and Masayuki Watanabe
Forum Geometricorum   5 37-45   2005   [Refereed]
Archimedean circles of Schoch and Woo
Hiroshi Okumura and Masayuki Watanabe
Forum Geometricorum   4 27-34   2004   [Refereed]
The twin circles of Archimedes in a skewed arbelos
Hiroshi Okumura and Masayuki Watanabe
Forum Geometricorum   4 229-251   2004   [Refereed]
Tangent circles in the ratio 2:1
Hiroshi Okumura and Masayuki Watanabe
Crux Mathematicorum   27(2 116-120)    2001   [Refereed]

Books etc

 
The arbelos, a cosmos made by three semi circles (in Japanese)
Iwanami Shoten   2010   ISBN:978-4-00-029574-1
Origami pots
Origami^3, A K Peters, LTD.   2002   
Wsansho Shusei (in Japanese)
Iwanami Shoten   2001   
A generalization of the regular tiling (4^4)
The Pattern Book fractals, art, and nature, World Scientific   1995   
A pattern by Fujita configurations
The Pattern Book fractals, art, and nature, World Scientific   1995   

Research Grants & Projects

 
Study on Tiling and Patterns
Circle Geometry, Wasan Geometry
arbelos