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Mathematicians Of The Day
12th February
On this day in 1826, Nikolai Lobachevsky delivered a paper before the mathematics and physics departments of Kazan University on his "imaginary geometry". This was what is now known as hyperbolic geometry.
See THIS LINK.
The postage stamp of one of today's mathematicians at THIS LINK was issued in 1981.
See THIS LINK.
The postage stamp of one of today's mathematicians at THIS LINK was issued in 1981.
Click on Ⓟ for a poster.
Born:
- 1856: Arnold Droz-Farny
- 1870: Horatio Carslaw Ⓟ
- 1889: Enrico Bompiani Ⓟ
- 1905: Harold Ruse Ⓟ
- 1908: Jacques Herbrand Ⓟ
- 1914: Hanna Neumann Ⓟ
- 1918: Julian Schwinger Ⓟ
- 1921: Kathleen McNulty Antonelli Ⓟ
- 1929: Aleksei Kostrikin Ⓟ
- 1941: Dennis Sullivan Ⓟ
- 1944: Seán Dineen Ⓟ
Died:
- 1916: Richard Dedekind Ⓟ
- 1958: Douglas Hartree Ⓟ
- 1960: Oskar Anderson Ⓟ
- 1962: Joseph Pérès Ⓟ
- 1977: Ebenezer Cunningham Ⓟ
- 1980: Einar Carl Hille Ⓟ
- 2001: Herbert Robbins Ⓟ
- 2017: Juan Jorge Schäffer Ⓟ
Quotation of the day
From Richard Dedekind
As professor in the Polytechnic School in Zürich I found myself for the first time obliged to lecture upon the elements of the differential calculus and felt more keenly than ever before the lack of a really scientific foundation for arithmetic.
