# Mathematician:Julius Peter Christian Petersen

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## Mathematician

Danish mathematician who worked on many areas of mathematics and wrote several textbooks.

Perhaps best known for the Petersen graph.

## Nationality

Danish

## History

- Born: 16 June 1839, SorĂ¸ on Zealand
- Died: 19 April 1914

## Theorems and Definitions

- Petersen Graph
- Petersen's Theorem: any bridgeless cubic graph has a 1-factor.
- Petersen-Morley Theorem (with Frank Morley)

Results named for **Julius Peter Christian Petersen** can be found here.

Definitions of concepts named for **Julius Peter Christian Petersen** can be found here.

## Publications

- 1863:
*Plane and spherical trigonometry* - 1866:
*Methods and theories for the solution of problems of geometrical construction* - 1871:
*On equations which can be solved by square roots, with application to the solution of problems by ruler and compass* - 1877:
*The theory of algebraic equations* - 1891:
*Die Theorie der regulĂ¤ren graphs*