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Similar Sublattices of Planar Lattices
Published online by Cambridge University Press: 20 November 2018
Abstract
The similar sublattices of a planar lattice can be classified via its multiplier ring. The latter is the ring of rational integers in the generic case, and an order in an imaginary quadratic field otherwise. Several classes of examples are discussed, with special emphasis on concrete results. In particular, we derive Dirichlet series generating functions for the number of distinct similar sublattices of a given index, and relate them to zeta functions of orders in imaginary quadratic fields.
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- Copyright © Canadian Mathematical Society 2011
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