Pu-Ting Yu

collaborators

Showing math.CAShow all

3 papers · 1 filter

math.CA2026

Woven weighted exponentials

Rohit Pai, Ivan Rocha, Pu-Ting Yu

Let $f$ and $g$ be nonzero functions in $L^{2} ([0, 1])$ . The \emph{woven weighted exponential system} (associated with $f$ and $g$ ) is defined by $$\Wc(f,g)=\bigset{\set{fe^{2πi nt}}_…

math.CA2026

Every semi-normalized unconditional Schauder frame in Hilbert spaces contains a frame

Pu-Ting Yu

Let $H$ be an infinite-dimensional Hilbert space. We prove that every unconditional Schauder frame for $H$ contains a subsequence that can be normalized to form a frame for $H$ . As…

math.CA2023

Frame-normalizable Sequences

Pu-Ting Yu

Let $H$ be a separable Hilbert space and let ${x_{n}}$ be a sequence in $H$ that does not contain any zero elements. We say that ${x_{n}}$ is a \emph{Bessel-normalizable} or \emph{…