128 citations · 704 across the 39 of their papers we have counts for
58 papers
Linear extension operators for Sobolev spaces on radially-symmetric binary trees
Charles Fefferman, Bo'az Klartag
Let and suppose that we are given a function defined on the leaves of a weighted tree. We would like to extend to a function defined on the entire tree…
Classification of implication-closed ideals in certain rings of jets
Charles Fefferman, Ary Shaviv
For a set that contains the origin we consider -- the set of all degree Taylor approximations (at the origin) of functions on…
A property of ideals of jets of functions vanishing on a set
Charles Fefferman, Ary Shaviv
For a set that contains the origin we consider -- the set of all degree Taylor approximations (at the origin) of functions on…
Optimal Control with Learning on the Fly: System with Unknown Drift
Daniel Gurevich, Debdipta Goswami, Charles L. Fefferman +1
This paper derives an optimal control strategy for a simple stochastic dynamical system with constant drift and an additive control input. Motivated by the example of a physical sy…
A Bounded mean oscillation (BMO) theorem for small distorted diffeomorphisms from to and PDE
C. Fefferman, S. B. Damelin
This announcement considers the following problem. We produce a bounded mean oscillation theorem for small distorted diffeomorphisms from to . A revision…
Controlling Unknown Linear Dynamics with Bounded Multiplicative Regret
Jacob Carruth, Maximilian F. Eggl, Charles Fefferman +2
We consider a simple control problem in which the underlying dynamics depend on a parameter that is unknown and must be learned. We exhibit a control strategy which is optimal to w…