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
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“God ... created a number of possibilities in case some of his prototypes failed—that is the meaning of evolution.”
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