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The Möbius function of PSL(3,2p) for any prime p
International Journal of Algebra and Computation ( IF 0.8 ) Pub Date : 2021-05-31 , DOI: 10.1142/s0218196721400014
Martino Borello 1 , Francesca Dalla Volta 2 , Giovanni Zini 3
Affiliation  

Let G be the simple group PSL(3, 2p), where p is a prime number. For any subgroup H of G, we compute the Möbius function μ(H) of H in the subgroup lattice of G. To this aim, we describe the intersections of maximal subgroups of G. We point out some connections of the Möbius function with other combinatorial objects, and, in this context, we compute the reduced Euler characteristic of the order complex of the subposet of r-subgroups of PGL(3,q), for any prime r and any prime power q.

中文翻译:

任意素数 p 的 PSL(3,2p) 的莫比乌斯函数

G成为简单的群体PSL(3, 2p), 在哪里p是一个素数。对于任何子组HG,我们计算莫比乌斯函数μ(H)H在子群格子中G. 为此,我们描述了最大子群的交集G. 我们指出了莫比乌斯函数与其他组合对象的一些联系,并且在这种情况下,我们计算了子集的阶复数的约简欧拉特征r- 亚组PGL(3,q), 对于任何素数r和任何主要力量q.
更新日期:2021-05-31
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