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http://dx.doi.org/10.7468/jksmeb.2018.25.3.203

DERIVATION AND ACTOR OF CROSSED POLYMODULES  

Davvaz, Bijan (Department of Mathematics, Yazd University)
Alp, Murat (Department of Mathematics, American University of the Middle East)
Publication Information
The Pure and Applied Mathematics / v.25, no.3, 2018 , pp. 203-218 More about this Journal
Abstract
An old result of Whitehead says that the set of derivations of a group with values in a crossed G-module has a natural monoid structure. In this paper we introduce derivation of crossed polymodule and actor crossed polymodules by using Lue's and Norrie's constructions. We prove that the set of derivations of a crossed polygroup has a semihypergroup structure with identity. Then, we consider the polygroup of invertible and reversible elements of it and we obtain actor crossed polymodule.
Keywords
action; crossed module; polygroup; crossed polymodule; derivation; fundamental relation;
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1 B. Davvaz: A survey on polygroups and their properties. Proceedings of the International Conference on Algebra 2010, 148-156, World Sci. Publ., Hackensack, NJ, 2012.
2 B. Davvaz: Isomorphism theorems of polygroups. Bulletin of the Malaysian Mathematical Sciences Society (2) 33 (2010), no. 3, 385-392.
3 B. Davvaz: On polygroups and permutation polygroups. Math. Balkanica (N.S.) 14 (2000), 41-58.
4 B. Davvaz & M. Alp: $Cat^1$-Polygroups and Pullback $Cat^1$-Polygroups. Bulletin of the Iranian Mathematical Society 40 (2014), no. 3, 721-735.
5 D. Freni: A note on the core of a hypergroup and the transitive closure ${\beta}*$ of ${\beta}$. Riv. Mat. Pura Appl. 8 (1991), 153-156.
6 D. Freni: Strongly transitive geometric spaces: applications to hypergroups and semi-groups theory. Comm. Algebra 32 (2004), 969-988.   DOI
7 N.D. Gilbert: Derivations, automorphisms and crossed modules. Comm. Algebra 18 (1990), 2703-2734.   DOI
8 M. Koskas: Groupoids, demi-groupes et hypergroupes. J. Math. Pures Appl. 49 (1970), 155-192.
9 V. Leoreanu-Fotea: The heart of some important classes of hypergroups. Pure Math. Appl. 9 (1998), 351-360.
10 A.S.-T. Lue: Semicomplete crossed modules and holomorphs of groups. Bull. London Math. Soc. 11 (1979), 8-16.   DOI
11 K.J. Norrie: Actions and automorphisms of crossed modules. Bull. Soc. Math. France 118 (1990), 129-146.   DOI
12 B. Davvaz: Applications of the ${\gamma}*$-relation to polygroups. Comm. Algebra 35 (2007), 2698-2706.   DOI
13 T. Vougiouklis: Hyperstructures and their representations. Hadronic Press, Inc, 115, Palm Harber, USA, 1994.
14 B. Davvaz: Polygroup theory and related systems. World Scientic Publishing Co. Pte. Ltd., Hackensack, NJ, 2013.
15 J.H.C. Whitehead: On operators in relative homotopy groups. Ann. of Math. (2) 49 (1948), 610-640.   DOI
16 J.H.C. Whitehead: Combinatorial homotopy II. Bull. Amer. Math. Soc. 55 (1949), 453-496.   DOI
17 M. Alp & B. Davvaz: Crossed polymodules and fundamental relations. U.P.B. Sci. Bull., Series A 77 (2015), no. 2, 129-140.
18 S.D. Comer: Polygroups derived from cogroups. J. Algebra 89 (1984), 397-405.   DOI
19 P. Corsini: Prolegomena of hypergroup theory. Second edition, Aviain editore, Italy, 1993.