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Ermakov, Vasily Petrovich

( mathematician)

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Biography Ermakov, Vasily Petrovich
photo Ermakov, Vasily Petrovich
Born in 1845. He graduated from the course at the University of St. Vladimir. In 1850, Mr.. opened a new sign of convergence of infinite series, surpassing all other signs of its sensitivity. This work is published in the article: "The general theory of convergence of series (" Mathematical Collection "1870. and "Bullet. des sciences mathem. et astronom. ", episode 2, t. III), "A new sign of convergence and divergence of infinite series of alternating" ( "University news University of St. Vladimir", 1872). In 1873, Mr.. published master's thesis "The general theory of integration of linear differential equations of higher order partial derivatives and other". Received a Ph.D. for his thesis "Integration of differential equations of mechanics". Contains a professor at Kiev University in the department of pure mathematics and a corresponding member of Academy of Sciences. Other major works of his: "The theory of doubly periodic functions" (1881), "Replacement variables as a way rozyskaniya integrating factor" ( "Communications of the Kharkov Mathematical Society", t. I, 1881), "Calculus of Variations in the new presentation" ( "Mathematical Sbornik", t. XVI, . 1891), "Expansion of functions, . has two special points in a row "(" Mathematical Sbornik ", . XVI, . 1892), "Approximate computation" (Kiev, . 1805) and a number of articles, . particularly on differential equations and the theory of functions in Kiev of University Izvestia, . "Communications of the Kharkov Mathematical Society", . "Enseign,
. Mathematique ", etc.


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Ermakov, Vasily Petrovich, photo, biography
Ermakov, Vasily Petrovich, photo, biography Ermakov, Vasily Petrovich  mathematician, photo, biography
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