John von Neumann is rightfully considered one of the greatest mathematicians of all time.

###### Childhood

John von Neumann was born in Budapest, the capital of Hungary, on December 28, 1903. He was the eldest son of his parents – Max Neumann and Margaret Kahn. From the earliest age of Neiman, the nature of numbers and mathematical logic were of interest.

Mathematics was not the only subject that young Neumann was interested in. He also liked the story, and so, that at the age of eight he read 40 volumes of world history. This indicated that Neiman felt equally well both in the logical and social branches of science. Neiman was also fortunate with his parents, who supported him in all undertakings.

In 1914, at the age of ten, Neumann entered the Lutheran Gymnasium,

###### Berlin, Zurich, Budapest

Although Neiman did not have much interest in either chemistry or engineering, his father persuaded him to do engineering because at that time it was considered prestigious. Neiman studied at the Catholic University of Peter Pazman in Budapest, where he received his doctorate in mathematics, and at the same time completed the basic university course in chemical engineering at the Swiss Technical School in Zurich.

In his doctoral work, Neumann was engaged in postulating the set theory proposed by Cantor. Of course, it was an unusual achievement that a seventeen-year-old boy simultaneously studied at the same university and wrote a doctorate in the second. He received good grades at the end of the basic course of chemical engineering and doctoral work in mathematics. He was only twenty-two years old.

###### Quantum mechanics

After receiving two degrees at once, in 1926, Neiman began to visit the University of GцTttingen in Germany, in which he was engaged in quantum mechanics. He was creative and original in his thinking, offering complete and logical concepts. In the same

Neumann tried to find similar features in the wave and matrix mechanics. He also worked on the rules of the abstract space of Hilbert and developed a mathematical structure from the point of view of quantum theory.

###### Personal life

During 1927-1929, after the presentation of the theory of quantum mechanics, Neiman attended numerous conferences and colloquiums. By 1929 he had written about 32 works in English. These works were well structured so that other mathematicians could include Neumann’s works in their theories. By this time he had become a celebrity in academic circles thanks to his creative and innovative theories. By the end of 1929, Neumann was offered a teaching position at Princeton University. At the same time, he married Mariette Kevashi, a childhood friend. In 1935 they had a daughter, who was named Marina. Marriage of John and Marietta fell apart in 1936. Marietta returned to Budapest, and Neiman traveled for some time in Europe, and then returned to the United States. During his trip to Budapest he met Klara Dan,

###### Death

John von Neumann was diagnosed with cancer, but despite this, he took part in the awards ceremonies organized in his honor, while sitting in a sedentary. He maintained close ties with family and friends during his illness. John von Neumann died on February 8, 1957.

###### Significant contribution

Neiman took part in one of the government projects in Los Alamos, where he worked on creating a diagram and working prototype of an explosive lens. Mathematical modeling, used by him during these works, contributed to the development of modern computers. In addition to working with these models, he also funded a project that was engaged in the creation of a computer. He also took part in the development of computer architecture, and his efforts eventually convinced other scientists that the computer is not just a “big calculator.”

Quantum logic, theory of business games, linear programming and mathematical statistics are just part of what he “gifted” to science.

###### Awards and achievements

- Speaker at the Colloquium of the American Mathematical Society, 1937 Winner of the Boher Award from the AMO, 1938 Speaker at the Gibbs Lectures from the AMO, 1944 Enrico Fermi Prize, 1956 Speaker at the International Congress, 1950 Honorary Member of the London Mathematical Society, 1952 President of the American Mathematical Society, 1952 Speaker at the International Congress, 1954