6 problems

Non-constructibility conjecture. The delta functions cannot be constructed.

Average-case complexity conjecture. The average case complexity of $\app$ in $\lstd$ is of the same order as the average case complexity of $\app$ in $\lall$.

The paper studies model-free off-policy reinforcement learning in continuous time with general function approximation. Its analysis uses an ellipticity condition, which induces a H…

Let $\operatorname{CL}_{\lVert\!\lVert\!\lVert\cdot\rVert\!\rVert\!\rVert}([0,\infty))$ denote the class of commutator-Lipschitz functions for the chosen unitarily invariant norm,…

Let $\widehat{\mathcal M}_+$ be the space of Fourier transforms of finite positive Borel measures on $\mathbb R$, and define … Let $f$ be a non-negative function that is operator m…

Let $h$ denote the maximum gap between the scattered data points in $T\subseteq[-1,1]$, and let $M$ be the truncation parameter in the weighted $\ell^1$ minimization method describ…