Eulerian and Hamiltonian
Eulerian paths and cycles
Question: Which of the two pictures below can be drawn in one go
without lifting your pen from the paper?
Definition: A trail is a walk with no repeated edges.
Definition: An Eulerian trail in a (m
A directed graph G or digraph (or simply graph) consists of two things:
A set V whose elements are called vertices, nodes, or points.
A set E of ordered pairs (u, v) of vertices called arcs or directed edges or
We will write
frequently in planning
for the distribution of
goods and services from several supply locations to several demand locations.
Typically, the quantity of goods available at each supp