# Mathematician:Isadore Manuel Singer

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## Mathematician

American mathematician working in the boundaries between pure mathematics and theoretical physics.

## Nationality

American

## History

- Born: May 3, 1924 in Detroit, Michigan, USA
- Died: February 19, 2021 in Boxborough, Massachusetts, USA

## Theorems and Definitions

- Atiyah-Singer Index Theorem (with Michael Francis Atiyah)
- Atiyah-Patodi-Singer Eta Invariant (with Michael Francis Atiyah and Vijay Kumar Patodi)
- Atiyah-Hitchin-Singer Theorem (with Michael Francis Atiyah and Nigel James Hitchin)
- Kadison-Singer Problem (with Richard Vincent Kadison)

## Publications

## Also known as

Known informally as **Is** or **Iz**.