Article · Wikipedia archive · Last revised Jun 23, 2026

Igor Dolgachev

Igor V. Dolgachev is a Russian–American mathematician specializing in algebraic geometry. He has been a professor at the University of Michigan since 1978. He introduced Dolgachev surfaces in 1981.

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Igor Dolgachev
Born (1944-04-07) April 7, 1944
Alma materMoscow State University (Ph.D.)
Known forDolgachev surface
Scientific career
FieldsMathematics
InstitutionsMichigan (1978–)
ThesisOn the purity of the degeneration locus of families of curves (1969)
Igor Shafarevich

Igor V. Dolgachev (born 7 April 19441) is a Russian–American mathematician specializing in algebraic geometry. He has been a professor at the University of Michigan since 1978. He introduced Dolgachev surfaces in 1981.2

Dolgachev completed his Ph.D. at Moscow State University in 1970, with thesis On the purity of the degeneration locus of families of curves written under the supervision of Igor Shafarevich.3

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