Andrey Aleksandrovich Leman (Russian: Андрей Александрович Леман, 1940–2012) was a Soviet mathematician and computer scientist who is known for the development of the Weisfeiler Leman graph isomorphism test together with Boris Weisfeiler published in 1968.
He also coedited a book for preparation of future olympiad participants.
He contributed to the Cuneiform OCR in the 1990s which was used by notable companies such as Oracle, IBM, and Samsung.
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