Constantin Apostol

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All published works

Action	Title	Year	Authors
+	Isomorphisms modulo the compact operators of nest algebras II	1988	Constantin Apostol Kenneth R. Davidson
+	On a Spectral Equivalence of Operators	1988	Constantin Apostol
+ PDF Chat	Structural Properties of Elementary Operators	1986	Constantin Apostol Lawrence A. Fialkow
+ PDF Chat	Isomorphisms modulo the compact operators of nest algebras	1986	Constantin Apostol Frank Gilfeather
+	On stable invariant subspaces	1985	Constantin Apostol Ciprian Foiaş Norberto Salinas
+	Invariant subspaces, dilation theory, and the structure of the predual of a dual algebra, I	1985	Constantin Apostol Hari Bercovici Ciprian Foiaş Carl Pearcy
+	On closures of similarity orbits of essentially nilpotent operators of order two	1985	Constantin Apostol Domingo A. Herrero
+	Hyperinvariant subspaces for bilateral weighted shifts	1984	Constantin Apostol
+	Dilation theory, Toeplitz operators, and other topics : 7th International Conference on Operator Theory, Timişoara and Herculane (Romania), June 7-17, 1982	1983	Constantin Apostol
+ PDF Chat	The closure of the similarity orbit of a Hilbert space operator	1982	Constantin Apostol Domingo A. Herrero Dan Voiculescu
+ PDF Chat	Quasiaffine transforms of operators.	1982	Constantin Apostol Hari Bercovici Ciprian Foiaş Carl Pearcy
+	On the Norm-Closure of the Similarity Orbit of Essentially Nilpotent Operators	1982	Constantin Apostol
+	Invariant Subspaces and Other Topics	1982	Constantin Apostol R. G. Douglas B. Nagy Dan-Virgil Voiculescu Gr. Arsene
+	Topics in Modern Operator Theory	1981	Constantin Apostol R. G. Douglas B. Nagy Dan-Virgil Voiculescu Gr. Arsene
+	A C*-Algebra Approach to the Cowen-Douglas Theory	1981	Constantin Apostol Mircea Martin
+ PDF Chat	That quasinilpotent operators are norm-limits of nilpotent operators revisited	1979	Constantin Apostol Ciprian Foiaş Carl Pearcy
+	On the Operator Equation TX - XV = A	1976	Constantin Apostol
+ PDF Chat	On Generalized Resolvents	1976	Constantin Apostol Kevin F. Clancey
+ PDF Chat	Local Resolvents of Operators with One-Dimensional Self-Commutator	1976	Constantin Apostol Kevin F. Clancey
+ PDF Chat	On generalized resolvents	1976	Constantin Apostol Kevin F. Clancey
+ PDF Chat	Quasi-similar models for nilpotent operators	1976	Constantin Apostol R. G. Douglas Ciprian Foiaş
+ PDF Chat	On the operator equation 𝑇𝑋-𝑋𝑉=𝐴	1976	Constantin Apostol
+ PDF Chat	Local resolvents of operators with one-dimensional self-commutator	1976	Constantin Apostol Kevin F. Clancey
+ PDF Chat	Generalized inverses and spectral theory	1976	Constantin Apostol Kevin F. Clancey
+ PDF Chat	Generalized Inverses and Spectral Theory	1976	Constantin Apostol Kevin F. Clancey
+ PDF Chat	Nilpotent approximations and quasinilpotent operators	1975	Constantin Apostol Norberto Salinas
+ PDF Chat	Operators Quasisimilar to a Normal Operator	1975	Constantin Apostol
+	Invariant subspaces for algebras generated by strongly reductive operators	1975	Constantin Apostol C. K. Fong
+ PDF Chat	Operators quasisimilar to a normal operator	1975	Constantin Apostol
+	<i>B</i> <sup>∗</sup> -Algebras and their Representation	1971	Constantin Apostol
+	Functional calculus in locally convex algebras	1970	Constantin Apostol
+	Remarks on the perturbation and a topology for operators	1968	Constantin Apostol
+ PDF Chat	On the Roots of Spectral Operators	1968	Constantin Apostol
+	Corrections to the paper ``Roots of scalar operator-valued analytic functions and their functional calculus''	1968	Constantin Apostol
+	Roots of scalar operator-valued analytic functions and their functional calculus	1968	Constantin Apostol
+ PDF Chat	On the roots of spectral operators	1968	Constantin Apostol
+	Sur la partie normale d'un ensemble d'opérateurs de l'espace de Hilbert	1966	Constantin Apostol

Common Coauthors

Coauthor	Papers Together
Kevin F. Clancey	6
Ciprian Foiaş	5
R. G. Douglas	3
Carl Pearcy	3
Norberto Salinas	2
Dan-Virgil Voiculescu	2
Hari Bercovici	2
B. Nagy	2
Domingo A. Herrero	2
Gr. Arsene	2
Dan Voiculescu	1
Frank Gilfeather	1
Lawrence A. Fialkow	1
Kenneth R. Davidson	1
Mircea Martin	1
C. K. Fong	1

Commonly Cited References

Action	Title	Year	Authors	# of times referenced
+ PDF Chat	Perturbation Theory for Linear Operators	1995	Tosio Kato	5
+	Holomorphic Vector-Valued Functions on a Domain of Holomorphy	1967	Graham Allan	4
+	Approximation of Hilbert space operators	1984	Domingo A. Herrero	4
+	On One-Sided Inverses in Banach Algebras of Holomorphic Vector-Valued Functions	1967	Graham Allan	4
+ PDF Chat	Spectral operators	1954	Nelson Dunford	4
+	Banach Algebra Techniques in Operator Theory	1998	Ronald G. Douglas	3
+ PDF Chat	A Hilbert Space Problem Book	1982	Paul R. Halmos	3
+	Theory of generalized spectral operators	1968	Ion Colojoara Ciprian Foiaş	3
+	Harmonic Analysis of Operators on Hilbert Space	1970	Béla Szõkefalvi-Nagy Ciprian Foiaş Hari Bercovici László Kérchy	3
+ PDF Chat	Quasi-similarity of operators	1972	Thomas Hoover	2
+ PDF Chat	Eigenvalues of seminormal operators, examples	1974	Richard Carey Joel D. Pincus	2
+ PDF Chat	Sums and products of commuting spectral operators	1958	S. R. Foguel	2
+ PDF Chat	The staircase representation of biquasitriangular operators.	1976	Ciprian Foiaş Carl Pearcy Dan Voiculescu	2
+	Weighted shift operators and analytic function theory	1974	Allen Shields	2
+ PDF Chat	A Generalized Operational Calculus Developed from Fredholm Operator Theory	1973	Jack M. Shapiro Martin Schechter	2
+ PDF Chat	Roots of Scalar Operators	1962	J. G. Stampfli	2
+	Invariant Subspaces	1973	Heydar Radjavi Peter Rosenthal	2
+	Restrictions of Spectral Operators	1965	H. R. Dowson	2
+ PDF Chat	Quasitriangular operator algebras	1976	Joan K. Plastiras	2
+ PDF Chat	Almost Isolated Spectral Parts and Invariant Subspaces	1976	C. R. Putnam	2
+ PDF Chat	Isomorphisms modulo the compact operators of nest algebras	1986	Constantin Apostol Frank Gilfeather	2
+	Resolvent vectors, invariant subspaces, and sets of zero capacity	1973	C. R. Putnam	2
+ PDF Chat	𝒞_{𝓅}-perturbations of nest algebras	1984	Gareth J. Knowles	2
+	Algebras of subnormal operators	1980	Robert F. Olin James E. Thomson	2
+ PDF Chat	An Invariant for Certain Operator Algebras	1974	Richard Carey Joel D. Pincus	2
+ PDF Chat	The Spectrum of Seminormal Operators	1971	Joel D. Pincus	2
+ PDF Chat	Roots of scalar operators	1962	Joseph G. Stampfli	2
+ PDF Chat	Generalized spectral operators on locally convex spaces	1963	Fumi-Yuki Maeda	2
+	The spectra of hyponormal integral operators	1971	Kevin F. Clancey C. R. Putnam	2
+ PDF Chat	Generalized inverses and spectral theory	1976	Constantin Apostol Kevin F. Clancey	2
+	Some invariant subspaces for subnormal operators	1978	Scott W. Brown	2
+ PDF Chat	Almost isolated spectral parts and invariant subspaces	1976	C. R. Putnam	1
+ PDF Chat	Stochastic integration in Fock space	1986	V. S. Sunder	1
+ PDF Chat	On absolutely convergent exponential sums	1960	Leon Brown Allen Shields Karl Zeller	1
+ PDF Chat	On linear representations of affine groups. I	1975	Manfred Wischnewsky	1
+ PDF Chat	Hermite character sums	1986	Ronald J. Evans	1
+	On spectral representations of generalized spectral operators	1963	Fumi-Yuki Maeda	1
+	Hyperinvariant subspaces for bilateral weighted shifts	1984	Constantin Apostol	1
+	(BCP)-operators are reflexive.	1982	Hari Bercovici Ciprian Foiaş J. Langsam Carl Pearcy	1
+	Invariant Subspaces of Completely Continuous Operators	1954	N. Aronszajn K. T. Smith	1
+	Finite-dimensional points of continuity of Lat	1980	John B. Conway Paul R. Halmos	1
+	Interpolation by type I factors and the flip automorphism	1983	Claudio D’Antoni Roberto Longo	1
+	Remarks on the perturbation and a topology for operators	1968	Constantin Apostol	1
+	Theory of Operator Algebras II	2003	Masamichi Takesaki	1
+	A characterization of spectral operators on locally convex spaces	1961	Fumi-Yuki Maeda	1
+	On dominating sequences in the unit disc	1984	Hari Bercovici	1
+	Certain Jordan operator algebras and double commutant theorems	1976	F. F. Bonsall Peter Rosenthal	1
+	Ein Zerspal Tungssatz Für Operatoren im Hilbertraum	1964	Heinz Langer	1
+	The distance to a similarity-invariant set of operators	1982	Domingo A. Herrero	1
+ PDF Chat	Analytically invariant and bi-invariant subspaces	1972	Domingo A. Herrero Norberto Salinas	1