# Mathematician:Erhard Schmidt

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## Mathematician

Baltic German mathematician whose work significantly influenced the direction of mathematics in the twentieth century.

## Nationality

German

## History

- Born: 13 January 1876 in Dorpat, Estonia (Russian Empire) (now Tartu, Estonia)
- Died: 16 December 1959 in Berlin, Germany

## Theorems and Definitions

- Gram-Schmidt Orthogonalization, also known as Gram-Schmidt Orthonormalization, or the Gram-Schmidt Process (with Jørgen Pedersen Gram)
- Hilbert-Schmidt Norm (with David Hilbert)
- Hilbert-Schmidt Operator (with David Hilbert)
- Lyapunov-Schmidt Reduction (with Aleksandr Mikhailovich Lyapunov)
- Schmidt Decomposition
- Hilbert-Schmidt Integral Operator (with David Hilbert)
- Krull-Schmidt Theorem (with Wolfgang Krull)

Results named for **Erhard Schmidt** can be found here.

Definitions of concepts named for **Erhard Schmidt** can be found here.

## Publications

- 1918: Co-founder of
*Mathematische Zeitschrift*, with Konrad Knopp and Issai Schur - 1929:
*On certainty in mathematics* - 1948: founder of
*Mathematische Nachrichten*