Personal reminiscence: combinatorial and discrete optimization problems in which I have been interested

Abstract

The present article takes up some of the author's research activities in the field of combinatorial and discrete optimization from 1975 till quite recently. It treats not only what the author has done but also what he still wants to do. They are written together with personal reminiscence and with the hope that this article will convey to researchers of younger generation the author's enthusiasm in combinatorial and discrete optimization on the frontier of research in the past till recently.