Igor Rostislavovich Shafarevich (Russian: И́горь Ростисла́вович Шафаре́вич; 3 June 1923 – 19 February 2017) was a Soviet and Russian mathematician who...

and John Tate and Igor Shafarevich. Cassels introduced the notation Ш(A/K), where Ш is the Cyrillic letter "Sha", for Shafarevich, replacing the older...

criterion after Ogg, Néron and Igor Shafarevich (commenting that Ogg's result seems to have been known to Shafarevich). Néron, André (1964), "Modèles...

In mathematics, the Golod–Shafarevich theorem was proved in 1964 by Evgeny Golod and Igor Shafarevich. It is a result in non-commutative homological algebra...

of Igor Shafarevich. Dolgachev, Igor V.; Keum, JongHae; Kondō, Shigeyuki (2007-01-25). Algebraic geometry: Korea-Japan Conference in honor of Igor Dolgachev's...

mathematics, the Shafarevich conjecture, named for Igor Shafarevich, may refer to: The Tate–Shafarevich conjecture that the Tate–Shafarevich group is finite...

is known to have a negative answer in general, as Evgeny Golod and Igor Shafarevich provided a counter-example in 1964. The problem has many refinements...

In mathematics, the Shafarevich theorem, named for Igor Shafarevich, may refer to: Néron–Ogg–Shafarevich criterion Golod–Shafarevich theorem about class...

of local data involving the Swan conductor. Andrew Ogg (1962) and Igor Shafarevich (1961) proved the formula for abelian varieties with tame ramification...

his best students are the mathematicians Aleksandr Aleksandrov and Igor Shafarevich. Delaunay was elected the corresponding member of the Academy of Sciences...