Ole Fredrik Brevig

activity

20132026

most citedThe multiplicative Hilbert matrix

57 citations · 299 across the 47 of their papers we have counts for

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Showing 2022Show all

4 papers · 1 filter

math.CA2022★ 5 cited

Point evaluation in Paley--Wiener spaces

Ole Fredrik Brevig, Andrés Chirre, Joaquim Ortega-Cerdà +1

We study the norm of point evaluation at the origin in the Paley--Wiener space $P W^{p}$ for $0 < p < \infty$ , i. e., we search for the smallest positive constant $C$ , called $\mathsc…

math.FA2022★ 2 cited

Correction to: Weak product spaces of Dirichlet series

Ole Fredrik Brevig, Karl-Mikael Perfekt

We correct the proof of Theorem~8 in [\emph{Weak product spaces of Dirichlet series}, Integral Equations Operator Theory \textbf{86} (2016), no.~4, 453--473.]

math.FA2022★ 2 cited

The Nehari problem for the Paley--Wiener space of a disc

Ole Fredrik Brevig, Karl-Mikael Perfekt

There is a bounded Hankel operator on the Paley--Wiener space of a disc in $R^{2}$ which does not arise from a bounded symbol.

math.FA2022★ 2 cited

Hilbert points in Hilbert space-valued $L^{p}$ spaces

Ole Fredrik Brevig, Sigrid Grepstad

Let $H$ be a Hilbert space and $(Ω, F, μ)$ a probability space. A Hilbert point in $L^{p} (Ω; H)$ is a nontrivial function $φ$ such that $∥ φ ∥_{p} \leq ∥ φ + f ∥_{p}$ whenever $\la…

Point evaluation in Paley--Wiener spaces

Correction to: Weak product spaces of Dirichlet series

The Nehari problem for the Paley--Wiener space of a disc

Hilbert points in Hilbert space-valued Lp spaces

Hilbert points in Hilbert space-valued $L^{p}$ spaces