In mathematics, a Perron number is an algebraic integer α which is real and exceeds 1, but such that its conjugate elements are all less than α in absolute value.
Any Pisot number or Salem number is a Perron number, as is the Mahler measure of a monic integer polynomial.
Read more about Perron Number: Perron Number of A Graph
Famous quotes containing the word number:
“I wonder love can have already set
In dreams, when we’ve not met
More times than I can number on one hand.”
—Philip Larkin (1922–1986)