Anatoly Moiseevich Vershik (Russian: Анато́лий Моисе́евич Ве́ршик; 28 December 1933 – 14 February 2024) was a Soviet and Russian mathematician. He is most famous for his joint work with Sergei V. Kerov on representations of infinite symmetric groups and applications to the longest increasing subsequences.

Vershik studied at Leningrad State University, receiving his doctoral degree in 1974; his advisor was Vladimir Rokhlin.^[1]

Vershik worked at the St. Petersburg Department of Steklov Institute of Mathematics and at Saint Petersburg State University. In 1998–2008, he was the president of the St. Petersburg Mathematical Society.

In 2012, Vershik became a fellow of the American Mathematical Society.^[2] In 2015, he was elected a member of Academia Europaea. ^[3]

His doctoral students include Alexander Barvinok, Dmitri Burago, Anna Erschler, and Sergey Fomin.

Anatoly Vershik died on 14 February 2024, at the age of 90.^[4][5]

• Bratteli–Vershik diagram