Tohsuke Urabe Mathematics Laboratory

This is the web page written by Tohsuke Urabe (1953-2011).
Only the Museum exhibition rooms produced by Urabe
in the Mathematics Museum are linked.


Department of Mathematical Sciences Ibaraki University, Japan Background music control

An origami masterpiece "Nishiki" This decoration ball of the regular icosahedron has extreme beauty also from the mathematical point of view. The coloring with five colors is fully symmetric. This represents a mathematical theorem "The icosahedral group is the alternating group of degree five." (Originated by Namiko Ishibashi, Seasonal magazine "Oru" 1995 Spring)

Department of Mathematical Sciences
Ibaraki University, Japan

Background music control

An origami masterpiece "Nishiki"

This decoration ball of the regular icosahedron has
extreme beauty also from the mathematical point of view.
The coloring with five colors is fully symmetric.
This represents a mathematical theorem
"The icosahedral group is the alternating group of degree five."

(Originated by Namiko Ishibashi, Seasonal magazine "Oru" 1995 Spring)

Entrance to Mathematics Museum

Below, Museum exhibition rooms produced by Urabe, myself

	Deformation of Catenoid to Helocoid		Geometry of wall paper patterns		Rotating Barth's Surface
	Rotating Kummer's Surface		Introduction to Geometry, Ibaraki University, 2002