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We construct a Moufang loop $M$ of order $3^{19}$ and a pair $a,b$ of its elements such that the set of all elements of $M$ that associate with $a$ and $b$ does not form a subloop. This is also an example of a nonassociative Moufang loop…

Group Theory · Mathematics 2015-09-03 Ilya B. Gorshkov , Alexandre N. Grichkov , Andrei V. Zavarnitsine

We use groups with triality to construct a series of nonassociative Moufang loops. Certain members of this series contain an abelian normal subloop with the corresponding quotient being a cyclic group. In particular, we give a new series of…

Group Theory · Mathematics 2013-05-16 Alexander N. Grishkov , Andrei V. Zavarnitsine

Code loops are certain Moufang $2$-loops constructed from doubly even binary codes that play an important role in the construction of local subgroups of sporadic groups. More precisely, code loops are central extensions of the group of…

Group Theory · Mathematics 2017-12-19 E. A. O'Brien , Petr Vojtěchovský

We study abelian-by-cyclic Moufang loops. We construct all split $3$-divisible abelian-by-cyclic Moufang loops from so-called Moufang permutations on abelian groups $(X,+)$, which are permutations that deviate from an automorphism of…

Group Theory · Mathematics 2023-01-11 Aleš Drápal , Petr Vojtěchovský

Using groups with triality we obtain some general multiplication formulas in Moufang loops, construct Moufang extensions of abelian groups, and describe the structure of minimal extensions for finite simple Moufang loops over abelian…

Group Theory · Mathematics 2016-06-22 Alexander N. Grishkov , Andrei V. Zavarnitsine

We investigate the relation between the structure of a Moufang loop and its inner mapping group. Moufang loops of odd order with commuting inner mappings have nilpotency class at most two. $6$-divisible Moufang loops with commuting inner…

Group Theory · Mathematics 2015-09-21 Gábor P. Nagy , Petr Vojtěchovský

The Moufang loop named for Richard Parker is a central extension of the extended binary Golay code. It the prototypical example of a general class of nonassociative structures known today as code loops, which have been studied from a number…

Combinatorics · Mathematics 2021-09-24 Ben Nagy , David Michael Roberts

Moufang loops are one of the best-known generalizations of groups. There is only one countable family of nonassociative finite simple Moufang loops, arising from the split octonion algebras. We prove that every member of this family is…

Group Theory · Mathematics 2007-05-23 Petr Vojtěchovský

For most (and possibly all) non-associative finite simple Moufang loops, three generators of order 3 can be chosen so that each two of them generate a group isomorphic to $(3, 3 | 3, p)$. The subgroup structure of $(3, 3 | 3, p)$ depends on…

Group Theory · Mathematics 2007-05-23 Petr Vojtěchovský

The paper establishes an one-to-one correspondence between simple Moufang loops and Paige loops constructed over Galois extension over prime field in its algebraic closure. Using this connection it describes fully the family of…

Rings and Algebras · Mathematics 2016-11-25 Nicolae Sandu

We investigate Moufang loops which can be written as the semidirect product of a loop and a group. We also examine a particular class of loop extensions which arise as a result of a finite cyclic group acting as a group of semiautomorphisms…

Group Theory · Mathematics 2015-02-24 Mark Greer , Lee Raney

Nonassociative finite simple Moufang loops are exactly the loops constructed by Paige from Zorn vector matrix algebras. We prove this result anew, using geometric loop theory. In order to make the paper accessible to a broader audience, we…

Group Theory · Mathematics 2007-05-23 Gábor P. Nagy , Petr Vojtěchovský

In groups, an abelian normal subgroup induces an abelian congruence. We construct a class of centrally nilpotent Moufang loops containing an abelian normal subloop that does not induce an abelian congruence. On the other hand, we prove that…

Group Theory · Mathematics 2023-03-01 Aleš Drápal , Petr Vojtěchovský

We show how to obtain all nonassociative Moufang loops of order less than 64 and 4262 nonassociative Moufang loops of order 64 in a unified way. We conjecture that there are no other nonassociative Moufang loops of order 64. The main idea…

Group Theory · Mathematics 2007-05-23 Petr Vojtěchovský

Let $L$ be a Moufang loop which is centrally nilpotent of class 2. We first show that the nuclearly-derived subloop (normal associator subloop) $L^*$ of $L$ has exponent dividing 6. It follows that $L_p$ (the subloop of $L$ of elements of…

Group Theory · Mathematics 2016-09-06 Tim Hsu

Automorphic loops are loops in which all inner mappings are automorphisms. This variety of loops includes, for instance, groups and commutative Moufang loops. We study uniquely 2-divisible automorphic loops, particularly automorphic loops…

Group Theory · Mathematics 2012-10-08 Michael Kinyon , Ken Kunen , J. D. Phillips , Petr Vojtechovsky

We present an elementary proof that the nonassociative simple Moufang loops over finite prime fields are generated by three elements. In the last section, we conclude that integral Cayley numbers of unit norm are generated multiplicatively…

Group Theory · Mathematics 2007-05-23 Petr Vojtěchovský

Code loops are Moufang loops constructed from doubly even binary codes. Then, given a code loop L, we ask which doubly even binary code V produces L. In this sense, V is called a representation of L. In this article we define and determine…

Representation Theory · Mathematics 2019-09-12 Rosemary Miguel Pires , Alexandre Grishkov , Marina Rasskazova

We generalize the global construction of code loops introduced by Nagy, which is based on the connection between Moufang loops and groups with triality. This follows from the construction of a nilpotent group $G_n$ of class 3 with triality…

The continuous Moufang loops are characterized as the algebraic systems where the associativity law is perturbed minimally. The minimal perturbation of associativity is characterized by the first- order partial differential equations, which…

Representation Theory · Mathematics 2016-04-15 Eugen Paal
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