Early learning stage

19101012 was born in a small businessman's family in Jintan county, Jiangsu province, with a height of1.65m. My father Hua Ruidong runs a small grocery store, and my mother is a virtuous housewife. Hua was born when his father was 40. At the age of 40, the couple regarded their son as the apple of their eye. In order to bless their son, they buckled two baskets for him when he was born. Therefore, Hua got its name. After graduating from Renmai Primary School at the age of 12, he entered Jintan County Junior High School and fell in love with mathematics. One day, the teacher worked out a math problem of "I don't know the number of things". The teacher said that this is a famous math problem in Sun Tzu's Art of War: "Today, there are things I don't know the number of. Three or three numbers leave two, five or five numbers leave three, and seven or seven numbers leave two. What is the geometry of things? " "23!" As soon as the teacher spoke, Hua blurted out his answer. At that time, Hua had not learned the Art of War:> He thought in the following ingenious way: "Three-three numbers leave two, seven-seven numbers leave two, and the remainder is two. This number may be 3×7+2=23, and dividing by 5 is just 3, so 23 is the number you want. "China denies that he is a genius.

1925 after graduating from junior high school, he was unable to enter senior high school because of his poor family, so he had to study accounting in the Chinese vocational school founded by Huang Yanpei in Shanghai, in order to find a job similar to accounting to support his family. In less than a year, due to the high cost of living, I was forced to drop out of school and go back to Jintan to help my father manage the grocery store. In the monotonous life of standing at the counter, he began to teach himself mathematics. When he returned to his hometown, he continued to study mathematics while working for his father in a grocery store with only a small facade. Recalling the time when he studied hard, his sister Hua Lianqing said, "Although it was winter, Luo Geng was still reading his math book at the checkout counter. Snuff running down, he wiped his nose with his left hand and threw it aside. He didn't get rid of it, so he stretched out his right hand and kept writing ... "

At that time, Luo Geng stood in front of the counter. When the customer came, he helped his father do business, do abacus and keep accounts. As soon as the customer left, he buried himself in reading and solving math problems. Sometimes I am in a daze, forget to receive the customer, and even take the calculation result as the payment payable by the customer, which surprises the customer. Because similar inexplicable things often happen, after a long time, his neighbors treat him as a joke, and everyone has nicknamed him "Luo Daku". Whenever something happens that neglects customers, my father is angry and anxious, saying that he is too tired to read the "heavenly book" and wants to burn the book forcibly. When there is an argument, Hua always clings to the book.

Later, recalling this life, he said bitterly: "It was a year when I should receive education, but the word' poor' deprived me of my dream: wiping my nose, a pair of straw sandals and a cigarette, a roll of rush grass and a needle in the northwest tuyere, struggling to survive." Stubborn self-study to 18 years old. /kloc-married Wu Xiaozhi in the autumn of 0/927. From 65438 to 0929, Hua was employed as a clerk in Jintan Middle School and began to publish papers in Shanghai Science and other magazines. 1929 In the winter, he suffered from severe typhoid fever. After nearly half a year's treatment, he recovered, but his left leg joint was seriously damaged, leaving him with a lifelong disability. He had to walk on crutches.

In fact, when Hua was in junior high school, his homework was not good once, and sometimes he failed in math. Hua's math teacher, a famous educator and translator in China (1900 was born in Jintan), was teaching in Jintan Middle School at that time. He found Hua playful, but quick-thinking, and his math exercises were often changed, and his method of solving problems was very unique and original. On one occasion, the teacher of Jintan Middle School lamented that there were many "poor students" and no "talents" in the school. Wang Weike said, "Not necessarily. In my opinion, China is one! " "Hua Luogeng?" A teacher smiled and said, "Look at him, this word is like a crab crawling. Can he become a' talent'? " Wang Weike said with some excitement, "Of course, he has little hope of becoming a great calligrapher, but how can you see his talent in mathematics from between his lines?" You know, gold is buried in sand and looks no different from sand. What we need most as teachers' eyes is the ability to find gold in the sand, otherwise we will bury talents! "

When Hua started his career as a mathematician, he only had an algebra, a collection and a 0-page calculus. Where there is a will, there is a way. He finally wrote that famous paper at the age of 19.

1in the spring of 930, his paper "Why can't the solution of Su Jiaju's algebraic quintic equation be established" was published in Shanghai Science Journal. Professor Xiong Qinglai, then head of the Department of Mathematics at Tsinghua University, attached great importance to this article. He asked the people around him, "Who is this Hua?" But no one has heard of Hua. Later, a teacher named Tang Peijing in Tsinghua introduced the life experience of his hometown Hua to Xiong Qinglai. "This young man is really not simple! He should be invited to Tsinghua. " Xiong Qing was very appreciative after listening to it. Hua is only 19 years old, but he has gone through a rather bumpy life.

Hua works and studies in Tsinghua University. It took him two years to complete the road that ordinary people need eight years to complete. 1933 was promoted to teaching assistant, 1935 became a lecturer. 1936 was recommended by Tsinghua University and sent to Cambridge University in England. During his two years in Cambridge, he devoted all his energy to the study of mathematical theoretical problems and was unwilling to waste time applying for a degree. His research results have attracted the attention of the international mathematics community. 1938 returned to China and was employed by Professor The National SouthWest Associated University. From 1939 to 194 1, under extremely difficult conditions, he wrote more than 20 papers and completed his first mathematical monograph, the theory of prime numbers on overlapping bases. Under the influence of Mr. Wen Yiduo, he also actively participated in the anti-Japanese democratic and patriotic movement that was in full swing at that time. The prime number theory on pile foundation later became a classic in mathematics. 1947 was published in Russian in the Soviet Union, and has been translated and published in German, English, Hungarian and Chinese in various countries.

1946 was invited to visit the Soviet union from February to May. 1946, the then national government also wanted to build an atomic bomb, so it sent three famous scientists, Hua, Zeng Zhaolun, to visit the United States. In September, Hua, Zhu Guangya and others left Shanghai for the United States. They first served as visiting professors at Princeton Institute for Advanced Studies, and then were hired as tenured professors by the University of Illinois.