TY  - JOUR
A1  - Denecke, Klaus-Dieter
A1  - Saengsura, Kittisak
T1  - Separation of clones of cooperations by cohyperidentities
N2  - An n-ary cooperation is a mapping from a nonempty set A to the nth copower of A. A clone of cooperations is a set of cooperations which is closed under superposition and contains all injections. Coalgebras are pairs consisting of a set and a set of cooperations defined on this set. We define terms for coalgebras, coidentities and cohyperidentities. These concepts will be applied to give a new solution of the completeness problem for clones of cooperations defined on a two-element set and to separate clones of cooperations by coidentities.
Y1  - 2009
UR  - https://publishup.uni-potsdam.de/frontdoor/index/index/docId/31617
UR  - http://www.sciencedirect.com/science/journal/0012365X
SN  - 0012-365X
ER  -