There are still relatively few successful amateur mathematicians. For example, Lu Jiaxi,1was born in Shanghai in June, 1935, and196/kloc-0 graduated from the Physics Department of Northeast Normal University in June. He has served as a physics teacher in No.24 Middle School and No.9 Middle School in Baotou City, Inner Mongolia. Baotou combinatorial mathematics expert. Engaged in combinatorial mathematics research for a long time. 196 1 year, he completed a series of papers on Kirkman's four links, and then devoted himself to research.

"Steiner series" created a unique recursive construction method by introducing prime factor, and completed seven papers with the total title of "disjoint Steiner ternary system set", which solved the problem that the international research on combinatorial design theory had not been carried out for many years.

Solve the problem. 1983 1 01October 31died in Baotou. He is a modern mathematician in China and the first prize winner of the National Natural Science Award.