Kosaku Inagakifs Home Page


About This Site:

Current URL: http://inagaki.ist.i.kyoto-u.ac.jp/

 Previous URL: http://www.i.kyoto-u.ac.jp/~inagaki/


Kosaku INAGAKI, Ph.D.


Associate Professor

Graduate School of Informatics

Kyoto University

Yoshida-Honmachi, Sakyo

Kyoto 606-8501


E-mail: inagaki[atmark]i.kyoto-u.ac.jp



To: Japanese Page



My research interests include complexity of self-organization and evolution, information physics, and development of an evolvable computer.  These fields are called ecomplex systems,f or more precisely, ecomplex adaptive systems.f  My theory unifies the evolution of life and intelligence, and clarifies the information laws of evolution and self-organization.  Computational universality, aka elemental universality, plays a major role in my theory.  I think that elemental universality is a kind of natural law that does not depend on materialistic physical laws.


@@@My theory also concerns the relation between matter and information.  Article 3 below is my favorite.  I made it as brief as possible, to bring the most important points to the foreground.


@@@Currently, with Professor Masatoshi Shima, the Father of the Microprocessor, I am pursuing the gDigital Einstein Projecth, aiming at the development of a new non-Von-Neumann computer. Called the gevolvable chiph, it will evolve and acquire intelligence by itself.  But this project is very difficult.


@@@To read articles 1 and 2 below, the understanding of elemental universality is not required. Undergraduate students in computer science will be able to understand these articles.  But articles 3 to 6 require elemental universality.  Its definition and proof are given in article 4.  Reading these articles requires graduate-level knowledge of computer science, in particular, of digital logic for hardware design. However, if you admit the theorem of elemental universality as true in advance, the article 3 will be easily understood (if only you are at ease with Boolean logic).


@@@Note:  Article 1 is still in Japanese.  The English version will be uploaded soon.  It may be published by courtesy of Professor Saber Elaydi, Trinity University, U.S., in his forthcoming book.



Opinions & Essays:

Who Discovered Chaos?   revised: September 5, 2003



Academic Articles: (original articles are uploaded)

1.    The Edge of Chaos Is Digital

(This article is in Japanese.  The reason and strategy are :-) )

(You may not read this article.  It has small relation to the following articles)

Kosaku Inagaki:

gOn Discreteness at the Edge of Chaosh (in Japanese)

IPSJ Transactions on Mathematical Modeling and Its Applications

Information Processing Society of Japan

Vol. 40, No. SIG 2 (TOM 1), pp. 76-81

February 1999

2.    Wolfram-Type EOC Exhibits Kauffman-Type Square-Root Law

Kosaku Inagaki:

gEdge of Chaos Exhibited by Signal Conservation Logich

IPSJ Transactions on Mathematical Modeling and Its Applications

Information Processing Society of Japan

Vol. 41, No. SIG 7 (TOM 3), pp. 57-63

November 2000

3.    Self-Replication Is the Origin of Intelligence

Kosaku Inagaki:

gMatter-Conserved Replication Causes Computational Universalityh

IEICE Transactions on Fundamentals of Electronics, Communications

and Computer Sciences

The Institute of Electronics, Information and Communication Engineers

Vol. E83-A, No. 3, pp. 579-580

March 2000

4.    Nonlinearity + Negative Feedback = Computational Universality

Kosaku Inagaki:

gElemental Universality of Sets of Logic Devicesh

IEICE Transactions on Information and Systems

The Institute of Electronics, Information and Communication Engineers

Vol. E81-D, No. 8, pp. 767-772

August 1998

5. The Emergence Hypothesis: Elemental Universality Is a Natural Law

Kosaku Inagaki:

gThe Emergence Hypothesis and Computational Universality

at the Edge of Chaosh

Electronics and Communications in Japan, Part3

Vol. 82, No. 11, pp. 1-8, 1999

(translated from the Japanese Paper:

Transactions of the Institute of Electronics, Information

and Communication Engineers A

Vol. J81-A, No. 9, pp. 1230-1237

September 1998)

5.    Proposal of Information Physics

Kosaku Inagaki:

gInformation Physics Based on the Emergence Hypothesis and

a Proof of Computational Universality of Single-NOT Networksh

IPSJ Transactions on Mathematical Modeling and Its Applications

Information Processing Society of Japan

Vol. 40, No. SIG 2 (TOM 1), pp. 68-75

February 1999

6.    Discovery of the SuperExponential Law

Kosaku Inagaki, et al.:

gMACSYM: A Hierarchical Parallel Image Processing System for

Event-Driven Pattern Understanding of Documentsh

Pattern Recognition

Vol. 17, No. 1. pp. 85-108




High-Level Mathematical & Logical Puzzles:

1. A Single NOT Element Is Sufficient to Construct a Computer

See the article 6 above.



About Me:

   Please see:  Marquis gWhofs Who in the World  2001h


   Kosaku INAGAKI, Graduate School of Informatics, Kyoto University




If you kindly rewrite my awkward English writing and mail it to me, I heartily appreciate.  My personal proverb is gEnglish is not the world language, but broken English is.h

copyright: Kosaku Inagaki