Counting the Closed Subgroups of Profinite Groups
Paul Gartside, Michael G. Smith
Abstract
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Paul Gartside, Michael G. Smith
Abstract
Open-access reader
The sets of closed and closed-normal subgroups of a profinite group carry a natural profinite topology. Through a combination of algebraic and topological methods the size of these subgroup spaces is calculated, and the spaces partially classified up to homeomorphism.
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The sets of closed and closed-normal subgroups of a profinite group carry a natural profinite topology. Through a combination of algebraic and topological methods the size of these subgroup spaces is calculated, and the spaces partially classified up to homeomorphism.
Key concepts: Profinite group, Mathematics, Homeomorphism (graph theory), Normal subgroup, Topological group, Algebraic number, Pure mathematics, Topological space