Nikolay Yakovlevich Sonin
Mathematician, Academic
1849 – 1915
Who was Nikolay Yakovlevich Sonin?
Nikolay Yakovlevich Sonin was a Russian mathematician.
He was born in Tula and attended Lomonosov University, studying mathematics and physics there from 1865 to 1869. His advisor was Nikolai Bugaev. He obtained a Master's Degree with a thesis submitted in 1871, then he taught at the University of Warsaw where he obtained a doctorate in 1874. He was appointed to a chair in the University of Warsaw in 1876. In 1894, Sonin moved to St. Petersburg where he taught at the University for Women.
Sonin worked on special functions, in particular cylindrical functions. For instance, the Sonine formula is a formula given by Sonin for the integral of the product of three Bessel functions. He is furthermore credited with the introduction of the associated Laguerre polynomials. He also contributed to the Euler–Maclaurin summation formula.
Other topics Sonin studied include Bernoulli polynomials and approximate computation of definite integrals, continuing Chebyshev's work on numerical integration. Together with Andrey Markov, Sonin prepared a two volume edition of Chebyshev's works in French and Russian. He died in St. Petersburg.
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- Born
- Feb 22, 1849
Tula - Nationality
- Russia
- Profession
- Education
- Moscow State University
- University of Warsaw
- Died
- Feb 27, 1915
Saint Petersburg
Submitted
on July 23, 2013
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