In Memory of Professor Andrei Nikolaievitch Tikhonov (1906-1993) on the 25th Anniversary of His Death

摘要

Thursday, November 8, 2018, is the twenty-fifth anniversary of the death of the celebrated Professor A. N. Tikhonov, one of my most favorite mathematicians. The idea of writing this paper to honor his life and scientific activities came to me as I was reading many of his works; I was impressed by his knowledge, amazing research, profound scholarship, perspicuity and eloquence of expression, painstaking accuracy, and big ideas. My aim is to be clear and evocative, for in this way I feel more in touch with my subject that is very interesting.