Quadratically hyponormal weighted shifts with two equal weights

DOI10.1007/BF01192423zbMath0961.47017OpenAlexW2007321714MaRDI QIDQ1580920

Raúl E. Curto, Il Bong Jung

Publication date: 21 May 2001

Published in: Integral Equations and Operator Theory (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1007/bf01192423

zbMATH Keywords

hyponormal operatorboundaryweighted shiftplanar closed convex setpositively quadratically hyponormal

Mathematics Subject Classification ID

Subnormal operators, hyponormal operators, etc. (47B20) Linear operators on special spaces (weighted shifts, operators on sequence spaces, etc.) (47B37) Linear operator methods in interpolation, moment and extension problems (47A57) Software, source code, etc. for problems pertaining to operator theory (47-04)

Related Items (16)

Criteria for positively quadratically hyponormal weighted shifts ⋮ Solution of the quadratically hyponormal completion problem ⋮ Unnamed Item ⋮ Semi-cubic hyponormality of weighted shifts with Stampfli recursive tail ⋮ Unnamed Item ⋮ On semi-weakly \(n\)-hyponormal weighted shifts ⋮ Backward extensions of recursively generated weighted shifts and quadratic hyponormality ⋮ A formula for 𝑘-hyponormality of backstep extensions of subnormal weighted shifts ⋮ Weak Hamburger-type weighted shifts and their examples ⋮ BACKWARD 3-STEP EXTENSIONS OF RECURSIVELY GENERATED WEIGHTED SHIFTS: A RANGE OF QUADRATIC HYPONORMALITY ⋮ Quadratically hyponormal weighted shifts with recursive tail ⋮ Unnamed Item ⋮ Quadratically Hyponormal Recursively Generated Weighted Shifts ⋮ A relationship: subnormal, polynomially hyponormal and semi-weakly hyponormal weighted shifts ⋮ Cubically hyponormal weighted shifts and their examples ⋮ One-step extension of the Bergman shift

Uses Software

• Mathematica

Cites Work

• Unnamed Item
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• Quadratically hyponormal weighted shifts
• Hyponormal polynomials of monotone shifts
• Nearly subnormal operators and moment problems
• Recursively generated weighted shifts and the subnormal completion problem
• Which weighted shifts are subnormal
• On Joint Hyponormality of Operators
• A Note on Joint Hyponormality
• Existence of non-subnormal polynomially hyponormal operators
• A Note on Hyponormal Weighted Shifts

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