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arXiv · 2606.25691

Sylow theory and the nilpotency class of left nilpotent skew braces

Gülin Ercan·Şükran Gül·İsmail Ş. Güloğlu·M. Yasir Kızmaz
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Abstract

Let $X$ be a finite left nilpotent skew brace and let $π$ be a set of primes. We show that every Hall $π$-subgroup of the multiplicative group $(X,\cdot)$ is a Hall $π$-subbrace of $X$. This extends \cite[Theorem 11]{CDDFT} by removing the solvability assumption. As an application, we obtain an upper bound for the left nilpotency class of $X$ in terms of the left nilpotency classes of its Sylow $p$-subbraces for every prime $p$ dividing the order of $X$. We also show that every $p$-subbrace of $X$ is contained in some Sylow $p$-subbrace.

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Gülin Ercan, Şükran Gül, İsmail Ş. Güloğlu, M. Yasir Kızmaz. 2026-07-22. Sylow theory and the nilpotency class of left nilpotent skew braces. https://arxiv.org/abs/2606.25691

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