Search Results - "Ishiwata, Tetsuya"
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Positivity-preserving numerical schemes for stochastic differential equations
Published in Japan journal of industrial and applied mathematics (01-12-2022)“…The solutions of stochastic differential equations arising in biology, finance and so on often have positivity. However, numerical solutions by the standard…”
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Upper estimates for blow-up solutions of a quasi-linear parabolic equation
Published in Japan journal of industrial and applied mathematics (01-01-2024)“…In this paper, we consider a quasi-linear parabolic equation u t = u p ( x xx + u ) . It is known that there exist blow-up solutions and some of them develop…”
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A note on blow-up solutions for a scalar differential equation with a discrete delay
Published in Japan journal of industrial and applied mathematics (01-12-2022)“…We study blow-up solutions for a general scalar differential equation with a discrete delay. It is shown that the existence of blow-up solutions for a discrete…”
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Asymptotic expansions of traveling wave solutions for a quasilinear parabolic equation
Published in Japan journal of industrial and applied mathematics (01-12-2022)“…In this paper, we investigate so-called slowly traveling wave solutions for a quasilinear parabolic equation in detail. Over the past three decades, the motion…”
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Blow-up rates of solutions of initial-boundary value problems for a quasi-linear parabolic equation
Published in Journal of Differential Equations (05-01-2017)“…We consider initial-boundary value problems for a quasi linear parabolic equation, kt=k2(kθθ+k), with zero Dirichlet boundary conditions and positive initial…”
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Preface to the special issue for the selected papers of the Czech-Japanese Seminar in Applied Mathematics 2021
Published in Japan journal of industrial and applied mathematics (01-12-2022)Get full text
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Delay-induced blow-up in a planar oscillation model
Published in Japan journal of industrial and applied mathematics (01-09-2021)“…In this paper we study a system of delay differential equations from the viewpoint of a finite time blow-up of the solution. We prove that the system admits…”
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A numerical method of estimating blow-up rates for nonlinear evolution equations by using rescaling algorithm
Published in Japan journal of industrial and applied mathematics (01-03-2018)“…In this paper, we proposed a numerical method for estimating blow-up rate of blow-up solutions for a class of nonlinear evolution equations which have a…”
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Development of carbamate pesticide detection kit
Published in Chudoku kenkyu : Chudoku Kenkyukai jun kikanshi = The Japanese journal of toxicology (01-09-2014)Get more information
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Motion of non-convex polygons by crystalline curvature and almost convexity phenomena
Published in Japan journal of industrial and applied mathematics (01-06-2008)“…The behavior of solution polygons to generalized crystalline curvature flow is discussed. The conditions to guarantee that the solution polygon keeps its…”
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Finite difference scheme for the Landau–Lifshitz equation
Published in Japan journal of industrial and applied mathematics (01-02-2012)“…In this paper we propose a finite difference scheme for the Landau–Lifshitz equation and the Heisenberg equation. These equations describe the evolution of…”
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Development of allyl isothiocyanate detection kit
Published in Chudoku kenkyu : Chudoku Kenkyukai jun kikanshi = The Japanese journal of toxicology (01-09-2009)Get more information
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Solid Phase Extraction of Phosphorus-containing Amino Acid-type Herbicides and Their Metabolites from Human Blood with Titania for Determination by Capillary Electrophoresis
Published in Analytical Sciences (01-06-2007)“…Phosphorus-containing amino acid-type herbicides (PAAHs) and their metabolites in human plasma and whole blood were extracted with titania and determined by…”
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On the blow-up rate for fast blow-up solutions arising in an anisotropic crystalline motion
Published in Journal of computational and applied mathematics (01-10-2003)“…We consider the asymptotic behavior of motion of polygonal convex curves by crystalline curvature in the plane. There appear spontaneously two types of…”
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The blow-up curve of solutions to one dimensional nonlinear wave equations with the Dirichlet boundary conditions
Published in Japan journal of industrial and applied mathematics (2020)“…In this paper, we consider the blow-up curve of semilinear wave equations. Merle and Zaag (Am J Math 134:581–648, 2012) considered the blow-up curve for ∂ t 2…”
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Development of detection kit for hydrogen sulfide in blood
Published in Chudoku kenkyu : Chudoku Kenkyukai jun kikanshi = The Japanese journal of toxicology (01-09-2009)Get more information
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Absolute Determination Method Using Chirality for Glufosinate and Bialaphos by γ-Cyclodextrin Modified Capillary Zone Electrophoresis
Published in Analytical Sciences (2005)“…A novel absolute determination method using chirality without any calibration curves or comparison standards has been proposed for phosphorus-containing amino…”
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Development of salicylic acid dipstick test
Published in Chudoku kenkyu : Chudoku Kenkyukai jun kikanshi = The Japanese journal of toxicology (01-10-2005)“…A dipstick test was successfully devised for the screening of salicylic acid in urine. It, named "salicylic acid dipstick test", is TLC plastic sheet which was…”
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