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Images of a finite set under iterations of two random dependent mappings

  • Aleksandr A. Serov EMAIL logo
Published/Copyright: July 15, 2016

Abstract

Let N be a set of N elements and F1,G1,F2,G2, be a sequence of independent pairs of random dependent mappings NN such that Fk and Gk are random equiprobable mappings and P{Fk(x)=Gk(x)}=α for all xN and k = 1, 2, … For a subset S0N,|S0|=n, we consider a sequences of its images Sk=Fk(F2(F1(S0))), Tk=Gk(G2(G1(S0))), k = 1, 2 …, and a sequences of their unions SkTk and intersections SkTk, k = 1, 2 … We obtain two-sided inequalities for M|SkTk| and M|SkTk| such that upper and lower bounds are asymptotically equivalent if N,n,k, nk=o(N) and α=O1N.


Note: Originally published in Diskretnaya Matematika (2015) 27, No_4, 133–140 (in Russian).


Award Identifier / Grant number: 14-50-00005

Funding statement: This work was supported by the Russian Science Foundation under grant no. 14-50-00005

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Received: 2015-10-30
Published Online: 2016-7-15
Published in Print: 2016-7-1

© 2016 Walter de Gruyter GmbH, Berlin/Boston

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