Generalized polynomials are mappings obtained from the conventional polynomials by the use of operations of addition, multiplication and taking the integer part. Extending the classical theorem of H. Weyl on equidistribution of polynomials, we show t
hat a generalized polynomial $q(n)$ has the property that the sequence $(q(n) lambda)_{n in mathbb{Z}}$ is well distributed $bmod , 1$ for all but countably many $lambda in mathbb{R}$ if and only if $limlimits_{substack{|n| rightarrow infty n otin J}} |q(n)| = infty$ for some (possibly empty) set $J$ having zero density in $mathbb{Z}$. We also prove a version of this theorem along the primes (which may be viewed as an extension of classical results of I. Vinogradov and G. Rhin). Finally, we utilize these results to obtain new examples of sets of recurrence and van der Corput sets.
We show that the equidistribution theorem of C. Bonatti and X. Gomez-Mont for a special kind of foliations by hyperbolic surfaces does not hold in general, and seek for a weaker form valid for general foliations by hyperbolic surfaces.
We prove the equidistribution of subsets of $(Rr/Zz)^n$ defined by fractional parts of subsets of~$(Zz/qZz)^n$ that are constructed using the Chinese Remainder Theorem.
We show that dynamical and counting results characteristic of negatively-curved Riemannian geometry, or more generally CAT($-1$) or rank-one CAT(0) spaces, also hold for rank-one properly convex projective structures, equipped with their Hilbert metr
ics, admitting finite Sullivan measures built from appropriate conformal densities. In particular, this includes geometrically finite convex projective structures. More specifically, with respect to the Sullivan measure, the Hilbert geodesic flow is strongly mixing, and orbits and primitive closed geodesics equidistribute, allowing us to asymptotically enumerate these objects.
We confirm a conjecture of Jens Marklof regarding the equidistribution of certain sparse collections of points on expanding horospheres. These collections are obtained by intersecting the expanded horosphere with a certain manifold of complementary d
imension and turns out to be of arithmetic nature. This equidistribution result is then used along the lines suggested by Marklof to give an analogue of a result of W. Schmidt regarding the distribution of shapes of lattices orthogonal to integer vectors.