Andreas Strömbergsson

Uppsala University


Rogers' mean value formula: some applications and extensions


Heilbronn Number Theory Seminar


21st November 2018, 4:00 pm – 5:00 pm
Howard House, 4th Floor Seminar Room


In 1955 C. A. Rogers proved an explicit formula for the expected value of a k-fold sum over a lattice L against an arbitrary test function, as L is taken random in the space of d-dimensional unimodular lattices, equipped with its invariant probability measure. This formula has found a number of applications over the years and I will describe some of these. In particular I will discuss the error term in the generalized circle problem for a random lattice in large dimension, and consequences regarding the value distribution of the Epstein zeta function along the real line. I will also describe an extension of Rogers' formula to a situation involving both L and its dual lattice L^*. The talk is based on joint work with Anders Södergren.






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