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1991 Fiscal Year Final Research Report Summary

Computing Science and Complex systems

Research Project

Project/Area Number 02452010
Research Category

Grant-in-Aid for General Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field General mathematics (including Probability theory/Statistical mathematics)
Research InstitutionKyushu University

Principal Investigator

TANAKA Syunichi  Kyushu Univ., Faculty of Sci., Professor, 理学部, 教授 (00028127)

Co-Investigator(Kenkyū-buntansha) OHTSUKA Hiroshi  Kyushu Univ., Faculty of Sci., Assistant, 理学部, 助手 (30203839)
KAWASAKI Hidefumi  Kyushu Univ., Faculty of Sci., Lecturer, 理学部, 講師 (90161306)
NAKAO Mitsuhiro  Kyushu Univ., Faculty of Sci., Associate Professor, 理学部, 助教授 (10136418)
YANAGAWA Takashi  Kyushu Univ., Faculty of Sci., Associate Professor, 理学部, 助教授 (80029488)
FURUKAWA Nagata  Kyushu Univ., Faculty of Sci., Professor, 理学部, 教授 (50037165)
Project Period (FY) 1990 – 1991
KeywordsComplex Systems / Formal Methods / Axiomatic Set Theory / Concurrency / Nonstandard Analysis
Research Abstract

The purpose of this project is to study possible relations between computing science and complex systems such as brain and market. As yet no secure theoretical foundation for studying these systems is available, we tried to search the one. The candidate is Formal Mathematics and Science based on the axiomatic set theory. Nonstandard Analysis is an important example in mathematics. In information and languages, Milner's Process Calculus and Barwise's Situation Theory (for natural languages) are formalized on non-well-founded set theory (developed by Aczel). These independent developments suggest the unity of various formal methods.
Neural network theory is a dynamical aspects of a complex system. Infinitesimals and hyperfinite integers of nonstandard analysis may give us new perspective on large finite dynamical systems.
Details of above observations are contained in the accompanying report.

  • Research Products

    (10 results)

All Other

All Publications (10 results)

  • [Publications] M.Furukawa: "A Second-order Extension of Ljusternik's Theorem without Twice Frechet Differentiability Condition" Bull.Informatics and Cybernetics.

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T.Yanagawa,Y.Kikuchi,K.G.Brown: "Statistical Issues on the Non-Observed-Adveres-Effect level in a Categorical Response" Environmental Health Perspectives.

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] M.Nakao: "Solving nonlinear parabolic problems with result verification I" Journal of Comutational and Applied Mathematics. 38. 323-334 (1991)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] H.Kawasaki: "Second Order necessary optimality conditions for minimizing a sup-type function" Mathematical Programming. 49. 213-229 (1991)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] H.Ohtsuka: "Comparison of two Categorical Models of Typed λ-Calculus" Bulletin of Informatics and Cybernetics. 24. 147-164 (1991)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] N. Furukawa: "A second-order Extension of Ljusternik's Theorem without Twice Frenchet Differentiability Condition" Bull. Informatics Cybernetics.

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T. Yanagawa, Y. Kikuchi, K. G. Brown: "Statistical Issues on the Non-Observed-Adverse-Effect level in a Categorical Response" Enviromental Health Perspectives.

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] M. Nakao: "Solving nonlinear parabolic problems with result verification I" J. Computational and Applied Mathematics. 38. 323-334 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] H. Kawasaki: "Second order necessary optimality conditions for minimizing a sub-type function" Mathematical Programming. 49. 213-229 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] H. Ohtsuka: "Comparison of two categorical models of typed lambda-calculus" Bull. Informatics Cybernetics. 24. 147-164 (1991)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1993-03-16  

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