Important information regarding the recent AMS power outage.

The transformer that provides electricity to the AMS building in Providence went down on Sunday, April 22. The restoration of our email, website, AMS Bookstore and other systems is almost complete. We are currently running on a generator but overnight a new transformer should be hooked up and (fingers crossed) we should be fine by 8:00 (EDT) Wednesday morning. This issue has affected selected phones, which should be repaired by the end of today. No email was lost, although the accumulated messages are only just now being delivered so you should expect some delay.

Thanks for your patience.

AMS Presidents: A Timeline

AMS Presidents: a Timeline home page

Solomon Lefschetz


23. Solomon Lefschetz (1884-1972)

President, 1935-1936

Ph.D. Clark University, Worcester, Massachusetts, 1911

Lefschetz was born in Moscow, Russia, studied in Paris, France, and came to the U.S. in 1905. Before he entered academia he worked at the Baldwin Locomotive Works, then for Westinghouse Electric Company in Pittsburgh, where he lost both his hands in a laboratory accident. Lefschetz was an instructor of mathematics first at the University of Nebraska and then at the University of Kansas before going to Princeton University in 1924, where he made the Princeton department world class. He became internationally recognized as a leader in the fields of algebraic geometry and topology, and was awarded the AMS Bôcher Memorial Prize in 1924 for his paper, "On certain numerical invariants with applications to Abelian varieties," Transactions of the AMS (Vol. 22, 1921, pp. 407-482), and he was awarded the AMS Leroy P. Steele Prize in 1970. Lefschetz was a member of the U.S. National Academy of Sciences.

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AMS Presidents: a Timeline home page

American Mathematical Society