In this paper we find a sufficient condition under which the operator of bisexual population is contraction and show that this condition is not necessary.
N. Ganikhodjaev, Nasir and U. Jamilov, Uygun
"Contracting Quadratic Operators of Bisexual population,"
Applied Mathematics & Information Sciences: Vol. 09
, Article 49.
Available at: https://dc.naturalspublishing.com/amis/vol09/iss5/49