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arXiv · 2004.05293

Finite presentability of universal central extensions of ${\mathfrak{sl}_n}$, II

Zezhou Zhang
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Abstract

In this note we connect finite presentability of a Jordan algebra to finite presentability of its Tits-Kantor-Koecher algebra. Through this we complete our discussion of finite presentability of universal central extensions of ${\mathfrak{sl}_n(A)}$, $A$ a $k$-algebra, initiated in our previous paper, and answer a question raised by Shestakov-Zelmanov in the positive.

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Zezhou Zhang. 2020-04-11. Finite presentability of universal central extensions of ${\mathfrak{sl}_n}$, II. https://arxiv.org/abs/2004.05293

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