# Mathematician:Øystein Ore

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## Mathematician

Norwegian mathematician whose work was mainly in graph theory, although also known for his work in ring theory and Galois theory.

One of the early founders of lattice theory.

Also known for writing and editing several books, including a few on various aspects of the history of mathematics.

## Nationality

Norwegian

## History

- Born: 7 October 1899, Oslo, Norway
- Died: 13 August 1968, Oslo, Norway

## Theorems and Definitions

Results named for **Øystein Ore** can be found here.

Definitions of concepts named for **Øystein Ore** can be found here.

## Publications

- 1924:
*Zur Theorie der algebraischen Körper*(Ph.D. thesis) - 1930:
*Collected Works of Richard Dedekind*(3 vols, ed. jointly with Emmy Noether) - 1934:
*Les Corps Algébriques et la Théorie des Idéaux* - 1936:
*L'Algèbre Abstraite*

- 1939:
*James Pierpont — In memoriam*(*Bull. Amer. Math. Soc.***Vol. 45**,*no. 7*: pp. 481 – 486)

- 1948:
*On the averages of the divisors of a number*(*Amer. Math. Monthly***Vol. 55**,*no. 10*: pp. 615 – 619) www.jstor.org/stable/2305616

- 1948:
*Number Theory and its History* - 1953:
*Cardano, the Gambling Scholar* - 1957:
*Niels Henrik Abel, Mathematician Extraordinary* - 1962:
*Theory of Graphs* - 1963:
*Graphs and Their Uses* - 1967:
*The Four-Color Problem* - 1969:
*Invitation to Number Theory*

## Also known as

Some sources report his name as **Oystein Ore**.