Title: Interpolation sets for nilsequences
Speaker: Anh N. Le – Ohio State University
Abstract: Interpolation sets are classical objects in harmonic analysis whichhave a natural generalization to ergodic theory regardingnilsequences. A set $E$ of natural numbers is an interpolation set fornilsequences if every bounded function on E can be extended to anilsequence on $\mathbb{N}$. By a result of Strzelecki, lacunary setsare interpolation sets for nilsequences. In this talk, I show that nosub-lacunary sets are interpolation sets for nilsequences and theclass of interpolation sets for nilsequences is closed under unionwith finite sets.
Zoom link: https://osu.zoom.us/j/93885989739?pwd=bUNWdjgzMS93NHRUcmVZRkljTDBHZz09
Meeting ID: 938 8598 9739
Password: Mixing
Recorded Talk: https://osu.zoom.us/rec/share/nIo2Tnfv7PMRIP3U_EG7FWw7N1YhFRL4BeJa_gqE0voCXN3enu_jnHuH-tW1H5q2.84ac0THimUVpKQfW