Yegor Ivanovich Zolotarev

Yegor Ivanovich Zolotarev (Russian Егор Иванович Золотарёв, also Solotareff, Zolotareff, in engl sometimes Egor Zolotarev, . Born March 31, 1847 in Saint Petersburg, † July 19, 1878 ) was a Russian mathematician who dealt specifically with number theory.

Life and work

The son of the merchant Ivan Vasilyevich Solotaryov visited 1857-1863, the fifth ( mathematics and natural science oriented ) high school in his hometown of St. Petersburg, where he graduated with honors before he was immediately afterwards admitted to the university as a listener and 1864 officially with the study could start at Pafnuti Chebyshev and Alexander Korkin. In 1867 he published a work on the integration of centrifugal equations, for which he was awarded the title " Candidate of Sciences". 1868 was followed by his " thesis per venia legendi " ( About a minimal problem), so he was a lecturer at the St. Petersburg University. Here he read from then on mainly through analysis and elliptic functions. 1869 was followed by the master's thesis ( it is more like the German doctorate) on the solutions of a cubic equation in integers. 1872 was followed by his first foreign trip to Berlin, where he heard of Karl Weierstrass and Ernst Eduard Kummer, to Heidelberg at Leo Koenigsberger and to Paris at Charles Hermite.

In 1874 he became a professor at the University of St. Petersburg and defended his doctoral dissertation ( theory of complex numbers with application to the integral calculus ), in which he solved a problem of his teacher Chebyshev order that had this tried in vain (expression of an elliptic integral by logarithmic functions). In 1876, he was the successor of Somov associate professor and at the same time an associate member of the Academy of Sciences. His career ended abruptly when he was run over on the way to his dacha in the Tsarskoye Selo station in July 1878 by a train, and shortly afterwards died of blood poisoning.

Solotaryov is today ( where he worked with Korkin ) best known for his contributions to the theory of quadratic forms and algebraic number theory ( the first signs of valuation theory ). In connection to Chebyshev he also dealt with approximation theory and elliptic integrals.