Research Output per year

## Fingerprint Dive into the research topics where Hidefumi Kawasaki is active. These topic labels come from the works of this person. Together they form a unique fingerprint.

Second-order Optimality Conditions
Mathematics

Second derivative
Mathematics

Conjugate points
Mathematics

Directional derivative
Mathematics

Second-order Derivatives
Mathematics

Second-order Necessary Conditions
Mathematics

Bimatrix Games
Mathematics

Nonlinear Programming
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 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