153 citations · 442 across the 33 of their papers we have counts for
15 papers · 1 filter
Dirichlet symbols and the nonlinear wave equation
Ramlal Debnath, Haakan Hedenmalm
We study the operator symbols of Dirichlet type introduced by Hedenmalm and Shimorin (2020), in connection with a given contraction on of the unit disk. They are always holom…
Quasicircles and hyperbolic zero packing
Haakan Hedenmalm
We look at the work of Oleg Ivrii connected with the dimension of quasicircles for asymptotically small quasiconformality parameter . We intend to make this work more easily acc…
Deep zero problems
Haakan Hedenmalm
We introduce a novel collection of uniqueness problems, with related sampling and interpolation issues. We call them deep zero problems, as they are concerned with local properties…
Soft Riemann-Hilbert problems and planar orthogonal polynomials
Haakan Hedenmalm
Riemann-Hilbert problems are jump problems for holomorphic functions along given interfaces. They arise in various contexts, e.g. in the asymptotic study of certain nonlinear parti…
Riemann-Hilbert hierarchies for hard edge planar orthogonal polynomials
Haakan Hedenmalm, Aron Wennman
We obtain a full asymptotic expansion for orthogonal polynomials with respect to weighted area measure on a Jordan domain with real-analytic boundary. The weight is f…
Backward shift and nearly invariant subspaces of Fock-type spaces
Alexandru Aleman, Anton Baranov, Yurii Belov +1
We study the structure of the backward shift invariant and nearly invariant subspaces in weighted Fock-type spaces , whose weight is not necessarily radial. We…