Sampling Formulae for Symmetric Selection
Kenji Handa, Saga University
Abstract
We study partition distributions in a population genetics model
incorporating symmetric selection and mutation.
They generalize Ewens distributions
in the infinitely-many-neutral-alleles model,
an explicit expression of which is known as
the Ewens sampling formula.
A sampling formula for the generalized model is obtained
by means of calculus for Poisson and gamma processes.
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