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 2019Show all

3 papers · 1 filter

math.FA2019★ 1 cited

Projecting onto Helson matrices in Schatten classes

Ole Fredrik Brevig, Nazar Miheisi

A Helson matrix is an infinite matrix $A = (a_{m, n})_{m, n \geq 1}$ such that the entry $a_{m, n}$ depends only on the product $mn$ . We demonstrate that the orthogonal projection from…

math.FA2019★ 1 cited

Coefficient estimates for $H^{p}$ spaces with $0 < p < 1$

Ole Fredrik Brevig, Eero Saksman

Let $C (k, p)$ denote the smallest real number such that the estimate $∣ a_{k} ∣ \leq C (k, p) ∥ f ∥_{H^{p}}$ holds for every $f (z) = \sum_{n \geq 0} a_{n} z^{n}$ in the $H^{p}$ space of the unit disc. W…

math.FA2019★ 10 cited

Norms of composition operators on the $H^{2}$ space of Dirichlet series

Ole Fredrik Brevig, Karl-Mikael Perfekt

We consider composition operators $C_{φ}$ on the Hardy space of Dirichlet series $H^{2}$ , generated by Dirichlet series symbols $φ$ . We prove two different subordin…

Projecting onto Helson matrices in Schatten classes

Coefficient estimates for Hp spaces with 0<p<1

Norms of composition operators on the H2 space of Dirichlet series

Coefficient estimates for $H^{p}$ spaces with $0 < p < 1$

Norms of composition operators on the $H^{2}$ space of Dirichlet series