Author

Kristian Seip

h-index 1 View on Semantic Scholar

We have 2 of 6 papers

We haven’t gathered this author’s papers yet. Follow them and we’ll fetch their work.

Not the right person? Other researchers publish under this name.

Preprint Oct 2026

The zeros of point evaluation extremals in Paley-Wiener spaces

For $1\le p<\infty$, $\varphi_p$ is the function of minimal $L^p$ norm among all functions $f$ of exponential type at most $\pi$ for which $f(0)=1$. We start from the ansatz that the positive zeros $\tau_n$ of $\varphi_p$ are close to $n+1/p-1/2$ and use a weighted convex correction to first place them in an \(\ell^2...

A. Bondarenko, Joaquim Ortega-Cerdà, Kristian Seip · 0 citations

Preprint Aug 2026

Fourier-invariant functions with dense zero sets

For every $0\leq\beta\leq1/2$, we construct a nonzero real-valued continuous function $f_\beta$ in $L^1(\mathbb R)\cap L^2(\mathbb R)$ such that $\widehat {f}_\beta=f_\beta$ and $f_\beta(\sqrt{n}/[\log(e+n)]^{\beta})=0$ for all $n\geq 0$. The case $\beta=0$ settles in the negative a question raised by Radchenko and Via...

A. Bondarenko, Kristian Seip · 0 citations