Research Output per year

## Fingerprint Fingerprint is based on mining the text of the person's scientific documents to create an index of weighted terms, which defines the key subjects of each individual researcher.

Nonlinear programming
Engineering & Materials Science

Second-order Optimality Conditions
Mathematics

Second derivative
Mathematics

Conjugate points
Mathematics

Derivatives
Engineering & Materials Science

Directional derivative
Mathematics

Second-order Derivatives
Mathematics

Second-order Necessary Conditions
Mathematics

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Network
Recent external collaboration on country level. Dive into details by clicking on the dots.

## Research Output 1981 2017

### A discrete fixed point theorem utilizing the direction preserving condition

Kawasaki, H. & Hashiyama, S., 2017, In : Journal of Nonlinear and Convex Analysis. 18, 8, p. 1535-1545 11 p.Research output: Contribution to journal › Article

Fixed point theorem

Decomposition

Decompose

Brouwer Fixed Point Theorem

Arbitrary

### An application of a theorem of alternatives to origami

Kawasaki, H., Jul 1 2017, In : Journal of the Operations Research Society of Japan. 60, 3, p. 393-399 7 p.Research output: Contribution to journal › Article

Duality

Mathematics

Twist

### Dynamic dualization in a general setting

Kawasaki, H., Apr 1 2017, In : Journal of the Operations Research Society of Japan. 60, 2, p. 44-49 6 p.Research output: Contribution to journal › Article

Objective function

Dual problem

Convolution

Duality

Optimization problem

### A combinatorial definition of 1D flat-folding

Kawasaki, H., Apr 19 2016,*Origami 5: Fifth International Meeting of Origami Science, Mathematics, and Education.*CRC Press, p. 575-583 9 p.

Research output: Chapter in Book/Report/Conference proceeding › Chapter

Folding

### A comparison of discrete fixed point theorems via a bimatrix game

Kawasaki, H., 2015, In : Journal of Nonlinear and Convex Analysis. 16, 8, p. 1501-1510 10 p.Research output: Contribution to journal › Article

Bimatrix Games

Fixed point theorem

Brouwer Fixed Point Theorem

Monotone Mapping

Contraction Mapping

## Prizes

## Best paper prize of the Society of Operations Research of Japan

Hidefumi Kawasaki (Recipient), Apr 1992

Prize