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Euler circuit criterion
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Mathematics
Area of mathematics
Foundations of mathematics
Graph theory
Eulerian graph
Created
2026-09-24
Updated
2026-10-07
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A
finite
graph
with at least three
vertices
is Eulerian exactly when it is connected and every
vertex
has even degree.
A
maximal trail closes by
parity
; closed trails based at
vertices
with unused incident edges can then be spliced together.
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Eulerian graph
Graph theory
Foundations of mathematics
Area of mathematics
Mathematics
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Euler circuit
Line graph of a regular graph is Eulerian
Past exam of the mathematics course of the University of Cambridge
/
2025
/
ii
/
Paper 3
/
17F
/
a
/
Solution
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