David Hilbert (1862 1 23rd of the month-14th of February 1943) was a German mathematician, and was recognized as one of the most influential and universal mathematicians in19th century and early 20th century. He invented or developed a series of extensive basic ideas, including the theory of invariants, geometric axioms and the concept of Hilbert space, which is one of the foundations of functional analysis.

Hilbert adopted and enthusiastically defended Georg Cantor's set theory and excesses. A famous example of his leading position in the field of mathematics is his 1 900 statement on a series of problems, which laid the foundation for many mathematical studies in the 20th century.

Hilbert and his students provided an important mathematical foundation for quantum mechanics and general relativity. He is also considered as one of the founders of proof theory, mathematical logic and the distinction between mathematics and meta-mathematics.

Von Neumann

John von neumann (Hungarian: Margittai Neumann Já nos Lajos) (19031February 28th–1February 8th, 957) is a Hungarian-born American mathematician, who has made great contributions in many fields, including set theory, functional analysis, quantum mechanics, ergodic theory and continuity. He is generally regarded as one of the most important mathematicians in the 20th century. Mathematician Jean dieudonne called von Neumann "the last great mathematician". Most notably, von Neumann is a pioneer in applying operator theory to quantum mechanics, a major member of Manhattan Project and Princeton Institute for Advanced Studies (one of the few members who were originally appointed), and a key figure in the development of game theory, cellular automata and general constructors. Von Neumann, together with edward tylor and S tanis Lao Ulan, worked out the key steps of nuclear physics involved in thermonuclear reaction and hydrogen bomb.

Banach

Stefan Banach (1892–1945) was a Polish mathematician who worked in Poland and the Soviet Union between the two world wars.

Barnah is a self-taught mathematical genius, the founder of modern functional analysis and the founder of mathematical school. One of his most outstanding achievements is the book "Theory of Linear Operation" written by 65438+ 0932, which is the first monograph on the general theory of linear metric spaces.

The famous mathematical concepts named after Barnabas include the Barnabas-Talsky paradox, Hahn-Barnabas theorem, Barnabas-steinhaus theorem and Barnabas space.