Isamu Ohnishi (Ph.D (Mathematical Science))

Control theory! My slogan is "To con…

Isamu Ohnishi (Ph.D (Mathematical Science))

Control theory! My slogan is "To control, we must first understand it properly, and characterize it as precisely as possible."

最近の記事

A mathematically scientific study of cyanobacteria’s circadian rhythm based on induced memory by hysteresis structure of covalent modification as self-feedforward auto-control system

Life organisms is a continuum of control systems, which is deeply interested mechanically as well as biologically. For instance, the circadian rhythm is a very useful trait that is naturally and instinctively possessed by life organisms tha

    • Spectral comparison between the second and the fourth order equations of conservative type with non local terms

      By Y. Nishiura and I. Ohnishi Japan J. Indust. Appl. Math. 15 , no. 2, 253 262, (1998) The abstract is the following: We present a spectral comparison theorem between the second and the fourth order equations of conservative type with no

      • Physarum can solve the shortest path problem on Riemannian surface mathematically rigorously

        By T. Miyaji, and I. Ohnishi International J. Pure Appl. Math.. Vol. 47, No. 3, pp.353 -369.

        • Macroscopic patt ern formation of liquid crystal in kappa carrageenan gel

          By T. Narita, I. Ohnishi, M. Tokita, and Y. Oishi Colloids and surfaces A, Vol. 321 (2008) 117 120. The abstract is the following: A macroscopic pattern consisting of liquid crystal layers in hydorgel is self-organized. The pattern forms

        A mathematically scientific study of cyanobacteria’s circadian rhythm based on induced memory by hysteresis structure of covalent modification as self-feedforward auto-control system

          Mathematical analysis to an adaptive network of the Plasmodium system

          By T. Miyaji, and I. Ohnishi Hokkaido Math. J. Volume 36, Number 2 (2007), 445-465. The abstract is the following: Adaptive networks are emerging a lot of fields of science, recently. In this paper, we consider about a mathematical mode

          Mathematical analysis to an adaptive network of the Plasmodium system

          A billiard problem in nonlinear and nonequilibrium systems

          By Masayasu Mimura, Tomoyuki Miyaji and Isamu Ohnishi Hiroshima Math. J. 37 (2007), 343–384 The Abstract is the following: . In this paper a billiard problem in nonlinear and nonequilibrium systems is investigated. This is an interesting

          A billiard problem in nonlinear and nonequilibrium systems

          Symmetry Breaking and Other Phenomena in the Optimization of Eigenvalues for Composite Membranes

          By S. Chanillo, D. Grieser, M. Imai, K. Kurata & I. Ohnishi Communications in Mathematical Physics volume 214, pages315–337(2000) The Abstract is the following: We consider the following eigenvalue optimization problem: Given a bounded

          Symmetry Breaking and Other Phenomena in the Optimization of Eigenvalues for Composite Membranes

          A Mathematical Aspects for Liesegang Phenomena

          By I. Ohnishi and M. Mimura Proceedings of Equadiff-11, 2005, pp. 343–352, ISBN 978-80-227-2624-5 The abstract is the following: Liesegang phenomena are macroscopic pattern formations which appear in a gel-containing system [1]. We can

          A Mathematical Aspects for Liesegang Phenomena

          Fast reaction limits and Liesegang bands

          By D. Hilhorst, R. van der Hout, M. Mimura and I. Ohnishi International Series of Numerical Mathematics, Vol. 154, 241–250 The abstract is the following: The purpose of this study is to start understanding from a mathematical viewpoint

          Fast reaction limits and Liesegang bands

          Standing pulse solutions for the FitzHugh-Nagumo equations

          By Y. Oshita, and I. Ohnishi, Japan Journal of Industrial and Applied Mathematics volume 20, Article number: 101 (2003) The abstract is the following: We are basically concerned with existence of standing pulse solutions for an elliptic

          Standing pulse solutions for the FitzHugh-Nagumo equations

          Dimension estimate of the global attractor for forced oscillation systems

          By Yuji HATTORI, Naoyuki ISHIMURA, Isamu OHNISHI and Makoto UMEKI Japan J. Indu5t. Appl. Math., 10 (1993), 351-366 The abstract is the following: We deal with the largest compact invariant setX for forced oscillation systems. As in the

          Dimension estimate of the global attractor for forced oscillation systems

          Dimension estimate of the global attractor for resonant motion of a spherical pendulum

          By Isamu Ohnishi Proc. Japan Acad. Ser. A Math. Sci., Volume 68, Number 9 (1992), 302-306. The Abstract is the following: Miles derived a system (SP). It describes the motion of a lightly damped spherical pendulum, which is forced to os

          Dimension estimate of the global attractor for resonant motion of a spherical pendulum

          Analytical solutions describing the phase separation driven by a free energy functional containing a long-range interaction term

          By Isamu Ohnishi, Yasumasa Nishiura, Masaki Imai, and Y. Matsushita CHAOS VOLUME 9, NUMBER 2 JUNE 1999 The abstract is the following: We are primarily concerned with the variational problem with long-range interaction. This functional re

          Analytical solutions describing the phase separation driven by a free energy functional containing a long-range interaction term

          Standard model of a binary digit of memory with multiple covalent modifications in a cell

          By Isamu Ohnishi J. Pur. Appl. Math., Vol.2 No.1 (2018) The abstract is the following: A model system of ordinary differential equations describing cyanobacteria’s circadian rhythm by use of a binary digit of memory induced by multiple

          Standard model of a binary digit of memory with multiple covalent modifications in a cell

          Memory Reinforcement with Scale Effect and its Application to Mutual Symbiosis among Terrestrial Cyanobacteria of Nostochineae, Feather Mosses and Old Trees in Boreal Biome in Boreal Forests

          By Isamu Ohnishi Global Science Chronicle, Vol 1(1): 1-7 (2019) The abstract is following: We are concerned with BNF (biological nitrogen fixation) of mutual symbiosis between terrestrial cyanobacteria of Nostochineae and feather mosses

          Memory Reinforcement with Scale Effect and its Application to Mutual Symbiosis among Terrestrial Cyanobacteria of Nostochineae, Feather Mosses and Old Trees in Boreal Biome in Boreal Forests

          Failure to the shortest path decision of an adaptive transport network with double edges in Plasmodium system

          By Tomoyuki Miyaji, Isamu Ohnishi, Atsushi Tero, and Toshiyuki Nakagaki Int. J. Dynamical Systems and Differential Equations, Vol. 1, No. 3, 2008 The abstract is the following: In this paper we study a mathematical model describing beha

          Failure to the shortest path decision of an adaptive transport network with double edges in Plasmodium system