Julius Peter Christian Petersen was a Danish mathematician, born in Soro, West Zealand, on 16 June 1839 and died in Copenhagen on 5 August 1910. His contributions to the field of mathematics led to the birth of graph theory. A graph in this sense is a set of points joined by lines, and the study of such networks grew into a large branch of modern mathematics, so his contributions are counted among the origins of a subject that now underlies much of discrete mathematics and computer science.
Facts
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Attributed Works
Source Petersen Graph (Wikipedia)
In Branch
Source Julius Petersen (Wikipedia)
Principal Result
Source Julius Petersen (Wikipedia)
Source Julius Petersen (Wikipedia)
Proofs Credited
Source 2-factor theorem (Wikipedia)
Source Petersen-Morley theorem (Wikipedia)
Source Petersen's theorem (Wikipedia)
In the Other Atlases
Nationality
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Source Julius Petersen (Wikipedia)Lead paragraph [nationality-culture]Quote, Lead paragraph [nationality-culture]
was a Danish mathematician
Sources
1. Julius Petersen (Wikipedia)
Lead paragraph
His contributions to the field of mathematics led to the birth o
Lead paragraph [nationality-culture]
was a Danish mathematician
Principal Result: Petersen's Theorem, Article text
(iv) The factorization of regular graphs of odd degree, in particular, the theorem that any bridgeless 3-regular graph can be decomposed into a l-factor and a 2-factor (Petersen's theorem).
Principal Result: Petersen Graph, Article text
In graph theory, two of Petersen's most famous contributions are: the Petersen graph, exhibited in 1898, served as a counterexample to Tait's ‘theorem’ on the 4-colour problem: a bridgeless 3-regular graph is factorable into three 1-factors and the theorem: ‘a connected 3-regular graph with at most two leaves contains
In Branch: Graph Theory, Lead paragraph [in-branch]
graph theory
View the SourcePetersen's theorem (Wikipedia)
Proofs Credited: Petersen's Theorem, Lead paragraphQuote, Proofs Credited: Petersen's Theorem, Lead paragraph
In the mathematical discipline of graph theory, Petersen's theorem, named after Julius Petersen, is one of the earliest results in graph theory and can be stated as follows:
Petersen-Morley theorem (Wikipedia)
Proofs Credited: Petersen-Morley Theorem, Lead paragraphQuote, Proofs Credited: Petersen-Morley Theorem, Lead paragraph
In geometry, the Petersen-Morley theorem states that, if
2-factor theorem (Wikipedia)
Proofs Credited: 2-Factor Theorem, LeadQuote, Proofs Credited: 2-Factor Theorem, Lead
In the mathematical discipline of graph theory, the 2-factor theorem, discovered by Julius Petersen, is one of the earliest works in graph theory.
Petersen Graph (Wikipedia)
Wikimedia FoundationAttributed Works: Petersen Graph, LeadQuote, Attributed Works: Petersen Graph, Lead
The Petersen graph is named after Julius Petersen, who in 1898 constructed it to be the smallest bridgeless cubic graph with no three-edge-coloring.
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