Jan Stochel, a stellar mathematician

Subnormal operators, hyponormal operators, etc. (47B20) Linear symmetric and selfadjoint operators (unbounded) (47B25) Moment problems and interpolation problems in the complex plane (30E05) Linear composition operators (47B33)

Cites Work

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Asymptotic behaviour and cyclic properties of weighted shifts on directed trees
Normal extensions escape from the class of weighted shifts on directed trees
A non-hyponormal operator generating Stieltjes moment sequences
Unbounded subnormal weighted shifts on directed trees
Weighted shifts on directed semi-trees: an application to creation operators on Segal-Bargmann spaces
Subnormality of unbounded composition operators over one-circuit directed graphs: exotic examples
Unbounded subnormal weighted shifts on directed trees. II
The Cauchy dual subnormality problem for cyclic \(2\)-isometries
A subnormal weighted shift on a directed tree whose \(n\)th power has trivial domain
Unbounded weighted shifts and subnormality
Normal extensions of subnormal composition operators
The classical moment problem as a self-adjoint finite difference operator
The complex moment problem and subnormality: A polar decomposition approach
Solving moment problems by dimensional extension
Complete Nevanlinna-Pick property of Dirichlet-type spaces
Unbounded weighted composition operators in \(L^2\)-spaces
A subnormal completion problem for weighted shifts on directed trees
The Cauchy dual and 2-isometric liftings of concave operators
\(m\)-isometric transformations of Hilbert space. I
\(m\)-isometric transformations of Hilbert space. II
\(m\)-isometric transformations of Hilbert space. III
A subnormal completion problem for weighted shifts on directed trees. II
A solution to the Cauchy dual subnormality problem for 2-isometries
Unbounded quasinormal operators revisited
Unbounded subnormal composition operators in \(L^2\)-spaces
On normal extensions of unbounded operators. III: Spectral properties
Taylor spectrum approach to Brownian-type operators with quasinormal entry
Wold-type decompositions and wandering subspaces for operators close to isometries
Weighted shifts on directed trees
A Semibounded Closed Symmetric Operator Whose Square Has Trivial Domain
Extending positive definiteness
Multishifts on directed Cartesian products of rooted directed trees
A hyponormal weighted shift on a directed tree whose square has trivial domain
On a Hilbert space of analytic functions and an associated integral transform part I
A spectral exclusion principle for unbounded subnormals
Subnormal Composition Operators
On completely hyperexpansive operators
Subnormality and Weighted Shifts
A peculiarity of the creation operator
Operators with absolute continuity properties: an application to quasinormality
An inequality for spherical Cauchy dual tuples
Sectorial forms and unbounded subnormals
Theory of Reproducing Kernels
Bernstein functions. Theory and applications
Toeplitz operators and quantum mechanics
Unbounded Hankel operators and the flow of the cubic Szegő equation

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