
handle: 10525/1883
Валентин В. Илиев - Авторът изучава някои хомоморфни образи G на групата на Артин на плитките върху n нишки в крайни симетрични групи. Получените пермутационни групи G са разширения на симетричната група върху n букви чрез подходяща абелева група. Разширенията G зависят от един целочислен параметър q ≥ 1 и се разцепват тогава и само тогава, когато 4 не дели q. В случая на нечетно q са намерени всички крайномерни неприводими представяния на G, а те от своя страна генерират безкрайна редица от неприводими представяния на групата на плитките. The author studies certain homomorphic images G of the Artin braid group on n strands in finite symmetric groups. Any permutation group G is an extension of the symmetric group on n letters by an appropriate abelian group. The extension G depends on an integer parameter q ≥ 1, and splits if and only if 4 does not divide q. In the case when q is odd, all finite-dimensional irreducible representations of G are found, thus finding an infinite series of irreducible representations of the braid group. *2000 Mathematics Subject Classification: 20C15, 20C35, 20F36.
512, Artin Braid Group, Split Extension, Finite-Dimensional, Permutation Representation, Irreducible Representation
512, Artin Braid Group, Split Extension, Finite-Dimensional, Permutation Representation, Irreducible Representation
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