Ten problems in Hilbert space

A Hilbert Space Problem Book

1982 • 2,471 citations

A HILBERT SPACE PROBLEM BOOK

1968 • 547 citations

Theory of generalized spectral operators

1968 • 528 citations

Algebraic Properties of Toeplitz operators.

1964 • 506 citations

Seminar on the Atiyah-Singer Index Theorem.

1968 • 487 citations

Über beschränkte quadratische formen, deren differenz vollstetig ist

1909 • 244 citations

A survey of the theory of spectral operators

1958 • 237 citations

Normal Dilations and Extensions of Operators

1983 • 234 citations

Invariant subspaces and unstarred operator algebras

1966 • 220 citations

Invariant Subspaces of Completely Continuous Operators

1954 • 219 citations

Unitary dilations for commuting contractions

1970 • 211 citations

On Some Algebras of Operators. II

1966 • 174 citations

Which weighted shifts are subnormal

1966 • 150 citations

Triangular Operator Algebras: Fundamentals and Hyperreducible Theory

1960 • 109 citations

Algebraic Properties of Toeplitz operators

1983 • 108 citations

Commuting spectral measures on Hilbert space

1954 • 107 citations

The Invariant Subspace Lattice of a Linear Transformation

1967 • 100 citations

A counterexample to a problem of Sz.-Nagy

1964 • 93 citations

A density theorem for operator algebras

1967 • 84 citations

Irreducible operators.

1968 • 62 citations

Approximate point spectrum of a weighted shift

1970 • 59 citations

Strong continuity of operator functions

1968 • 59 citations

A note on quasitriangular operators

1970 • 57 citations

Spectral theory for operators on a Banach space

1957 • 55 citations

On Similarity, Reducing Manifolds, and Unitary Equivalence of Certain Volterra Operators

1957 • 54 citations

On Invariant Subspaces and Reflexive Algebras

1969 • 50 citations

Quasitriangular operators

1983 • 47 citations

INVARIANT SUBSPACES OF WEIGHTED SHIFT OPERATORS

1967 • 46 citations

Operators commuting with a weighted shift

1969 • 44 citations

On Foguel’s answer to Nagy’s question

1964 • 41 citations

A power-bounded operator that is not polynomially bounded.

1968 • 38 citations

Subdiagonalization of operators in Hilbert space with compact imaginary part

1962 • 37 citations

Cyclic vectors and parts of the spectrum of a weighted shift

1969 • 33 citations

Weighted shifts on Hilbert space

1966 • 23 citations

On Invariant Subspaces of Quasitriangular Operators

1969 • 23 citations

Spectral Theory for Operators on a Banach Space

1957 • 19 citations

Weighted Translation Operators.

1965 • 17 citations

Approximate Point Spectrum of a Weighted Shift

1970 • 16 citations

Distinguished rings of linear transformations

1964 • 16 citations

The set of irreducible operators is dense

1969 • 15 citations

A note on invariant subspaces

1969 • 15 citations

A note on invariant subspaces.

1970 • 13 citations

Cyclic Vectors and Parts of the Spectrum of a Weighted Shift

1969 • 12 citations

On lattices of invariant subspaces

1967 • 12 citations

Sums of irreducible operators

1969 • 8 citations

Eine Bemerkung zur Existenz invarianter Teilr�ume linearer Abbildungen

1963 • 8 citations

Shorter Notes: The Set of Irreducible Operators is Dense

1969 • 7 citations

On the Triangular Representation of Integral Operators

1962 • 6 citations

On the irreducibility of weighted shifts

1969 • 5 citations

Every operator is the sum of two irreducible ones

1969 • 5 citations

Sums of Irreducible Operators

1969 • 4 citations

Distinguished Rings of Linear Transformations

1964 • 4 citations

On the Irreducibility of Weighted Shifts

1969 • 4 citations

Shorter Notes: Every Operator is the Sum of Two Irreducible Ones

1969 • 3 citations

Deleted Work

1955 • 0 citations