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JOURNALS // Journal of Siberian Federal University. Mathematics & Physics // Archive

J. Sib. Fed. Univ. Math. Phys., 2017 Volume 10, Issue 2, Pages 140–145 (Mi jsfu534)

This article is cited in 4 papers

On some maximal clone of partial ultrafunctions on a two-element set

Sergey A. Badmaev

Institute of Mathematics and Computer Science, Buryat State University, Smolina, 24a, Ulan-Ude, 670000, Russia

Abstract: Multifunctions on a two-element set are considered in this paper. Functions from finite set to set of all subsets of this set are called multifunctions. Partial functions, hyperfunctions, ultrafunctions, partial hyperfunctions and partial ultrafunctions are arised depending on the type of multifunctions and superposition. In this work the problem of description of clones (sets of function closed with respect to the operation of superposition and containing all the projections) of partial ultrafunctions is considered. We got a description of one maximal clone of partial ultrafunctions on two-element set by the predicate approach.

Keywords: multifunctions, ultrafunctions, maximal clones, lattice.

UDC: 517.9

Received: 02.11.2016
Accepted: 20.01.2017

Language: English

DOI: 10.17516/1997-1397-2017-10-2-140-145



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