## Mathematicians Of The Day

### 25th November

On this day in 1915, Albert Einstein Einstein submitted his paper

See THIS LINK.

*The field equations of gravitation*which give the correct field equations for general relativity.See THIS LINK.

Click on Ⓟ for a poster.

##### Born:

- 1783: Claude-Louis Mathieu Ⓟ
- 1804: George Jerrard
- 1841: Ernst Schröder Ⓟ
- 1943: Evelyn Nelson Ⓟ

##### Died:

- 1694: Ismael Boulliau Ⓟ
- 1913: Robert Ball Ⓟ
- 1936: Édouard Goursat Ⓟ
- 1937: Alessandro Padoa Ⓟ
- 1952: Edward Huntington Ⓟ
- 1953: Jan Kalicki
- 1978: Eduard Stiefel Ⓟ
- 1988: Dmitrii Menshov Ⓟ
- 2008: Beno Eckmann Ⓟ
- 2012: Lars Hörmander Ⓟ

#### Quotation of the day

##### From Ismael Boulliau

As for the power by which the Sun seizes or holds the planets, and which, being corporeal, functions in the manner of hands, it is emitted in straight lines throughout the whole extent of the world, and like the species of the Sun, it turns with the body of the Sun; now, seeing that it is corporeal, it becomes weaker and attenuated at a greater distance or interval, and the ratio of its decrease in strength is the same as in the case of light, namely, the duplicate proportion, but inversely, of the distances that is, $\Large\frac {1}{d^2}$.