Zeta functions of ${\mathbb{F}}_p$-Lie algebras and finite $p$-groups

Abstract

We study zeta functions enumerating subalgebras or ideals of Lie algebras over finite field of prime order ${\mathbb{F}}_p$. We first develop a general blueprint method for computing zeta functions of ${\mathbb{F}}_p$-Lie algebras, and demonstrate its practical applications in detail to obtain explicit formulas for various interesting new examples that are not covered in any known literature yet. For nilpotent cases this also provides zeta functions counting subgroups and normal subgroups of finite $p$-groups of exponent $p$ for almost all primes via the Lazard correspondence. We investigate their connections to the study of finite $p$-groups, and discuss what can be deduced from these finite Dirichlet polynomials.