Brockhaus and Efron Encyclopedic Dictionary B82 31-6

Ivan Ivanovich Ivanov (; 11 August 1862 – 17 December 1939) was a

Russia Russia, or the Russian Federation, is a country spanning Eastern Europe and North Asia. It is the list of countries and dependencies by area, largest country in the world, and extends across Time in Russia, eleven time zones, sharing Borders ...

Soviet The Union of Soviet Socialist Republics. (USSR), commonly known as the Soviet Union, was a List of former transcontinental countries#Since 1700, transcontinental country that spanned much of Eurasia from 1922 until Dissolution of the Soviet ...

mathematician A mathematician is someone who uses an extensive knowledge of mathematics in their work, typically to solve mathematical problems. Mathematicians are concerned with numbers, data, quantity, mathematical structure, structure, space, Mathematica ...

who worked in the field of

number theory Number theory is a branch of pure mathematics devoted primarily to the study of the integers and arithmetic functions. Number theorists study prime numbers as well as the properties of mathematical objects constructed from integers (for example ...

. Together with

Georgy Voronoy Georgy Feodosevich Voronyi (; ; 28 April 1868 – 20 November 1908) was an Imperial Russian mathematician of Ukrainians, Ukrainian descent noted for defining the Voronoi diagram. Biography Voronyi was born in the village of Zhuravka, Pyriatyn, in ...

he continued

Pafnuty Chebyshev Pafnuty Lvovich Chebyshev ( rus, Пафну́тий Льво́вич Чебышёв, p=pɐfˈnutʲɪj ˈlʲvovʲɪtɕ tɕɪbɨˈʂof) ( – ) was a Russian mathematician and considered to be the founding father of Russian mathematics. Chebysh ...

's work on the subject.

Life and work

Ivanov was born in

Saint Petersburg Saint Petersburg, formerly known as Petrograd and later Leningrad, is the List of cities and towns in Russia by population, second-largest city in Russia after Moscow. It is situated on the Neva, River Neva, at the head of the Gulf of Finland ...

. He finished his studies in mathematics at

Saint Petersburg University Saint Petersburg State University (SPBGU; ) is a public research university in Saint Petersburg, Russia, and one of the oldest and most prestigious universities in Russia. Founded in 1724 by a decree of Peter the Great, the university from the be ...

with his candidate thesis, "About prime numbers". In 1891 there followed his master thesis "integral

complex number In mathematics, a complex number is an element of a number system that extends the real numbers with a specific element denoted , called the imaginary unit and satisfying the equation i^= -1; every complex number can be expressed in the for ...

s", and in 1901 his doctoral thesis, "About some questions in connection with the number of prime numbers". Starting in 1891, Ivanov lectured at St. Petersburg University; from 1896, he lectured at the women's university, and after 1902 at

Saint Petersburg Polytechnical University Peter the Great St. Petersburg Polytechnic University, abbreviated as SPbPU, is a public technical university located in Saint Petersburg, Russia. Over the decades, it established itself as a cornerstone of technical education and research, ulti ...

. In 1924 Ivanov was elected corresponding member of the

Russian Academy of Sciences The Russian Academy of Sciences (RAS; ''Rossíyskaya akadémiya naúk'') consists of the national academy of Russia; a network of scientific research institutes from across the Russian Federation; and additional scientific and social units such ...

References

External links

Иванов, Иван Иванович
- dic.academic.ru {{DEFAULTSORT:Ivanov, Ivan 1862 births 1939 deaths Mathematicians from the Russian Empire Soviet mathematicians Number theorists Mathematicians from Saint Petersburg Saint Petersburg State University alumni Burials at Bogoslovskoe Cemetery