Evgenii Landis

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Landis at a conference on potential theory in Prague, 1987

Evgenii Mikhailovich Landis (Russian: Евге́ний Миха́йлович Ла́ндис, Yevgeny Mikhaylovich Landis; October 6, 1921 – December 12, 1997) was a Soviet mathematician who worked mainly on partial differential equations.


Landis was born in Kharkiv, Ukrainian SSR, Soviet Union. He studied and worked at the Moscow State University, where his advisor was Alexander Kronrod, and later Ivan Petrovsky. In 1946, together with Kronrod, he rediscovered Sard's lemma unknown in Russia at the time.

Later he worked on uniqueness theorems for elliptic and parabolic differential equations, Harnack inequalities, and Phragmén–Lindelöf type theorems. With Georgy Adelson-Velsky, he invented the AVL tree datastructure (where "AVL" stands for Adelson-Velsky Landis).

He died in Moscow. His students include Yulij Ilyashenko.

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