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Tetsuo Ichimori

Osaka University

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Publication

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Discrete Applied Mathematics | 1983

Two routing problems with the limitation of fuel

Tetsuo Ichimori; Hiroaki Ishii; Toshio Nishida

Two routing problems are considered. Although these two are related to each other, one is polynomially solvable and, by contrast, the other is NP-complete. First an efficient solution procedure is developed for the polynomially solvable problem. Then we establish NP-completeness of the other problem.

Transportation Science | 1985

Note on a Rectilinear Distance Round-Trip Location Problem

Tetsuo Ichimori; Toshio Nishida

This note shows that the rectilinear distance round-trip location problem with N pairs of existing facilities considered by Chan and Hearn can be solved in time 0( N log N ).

Journal of The Operations Research Society of Japan | 1995

ON THE UNBIASEDNESS OF THE PARAMETRIC DIVISOR METHOD FOR THE APPORTIONMENT PROBLEM

Tatsuo Oyama; Tetsuo Ichimori

Journal of The Operations Research Society of Japan | 2012

A NOTE ON RELAXED DIVISOR METHODS

Tetsuo Ichimori

Journal of The Operations Research Society of Japan | 1981

ROUTING A VEHICLE WITH THE LIMITATION OF FUEL

Tetsuo Ichimori; Hiroaki Ishii; Toshio Nishida

Journal of The Operations Research Society of Japan | 1981

WEIGHTED MINIMAX REAL-VALUED FLOWS

Tetsuo Ichimori; Hiroaki Ishii; Toshio Nishida

Journal of The Operations Research Society of Japan | 1981

ALGORITHM FOR ONE MACHINE JOB SEQUENCING WITH PRECEDENCE CONSTRAINTS

Tetsuo Ichimori; Hiroaki Ishii; Toshio Nishida

Journal of The Operations Research Society of Japan | 1985

A SHORTEST PATH APPROACH TO A MULTIFACILITY MINIMAX LOCATION PROBLEM WITH RECTILINEAR DISTANCES

Tetsuo Ichimori

Journal of The Operations Research Society of Japan | 2012

RELAXED DIVISOR METHODS AND THEIR SEAT BIASES

Tetsuo Ichimori

Journal of The Operations Research Society of Japan | 1980

FINDING THE WEIGHTED MINIMAX FLOW IN A POLYNOMIAL TIME

Tetsuo Ichimori; Hiroaki Ishil; Toshio Nishida

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Toshio Nishida

Osaka University

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Hiroaki Ishii

Kwansei Gakuin University

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Shogo Shiode

Kobe Gakuin University

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