Continuity of Calderón-Zygmund operators on the space BMO.
Continuity of generalized inverses in Banach algebras
The main topic of the paper is the continuity of several kinds of generalized inversion of elements in a Banach algebra with identity. We introduce the notion of asymptotic generalized invertibility and completely characterize sequences of elements with this property. Based on this result, we derive continuity criteria which generalize the well known criteria from operator theory.
Continuity of spectrum and spectral radius in algebras of operators
Continuity of the Drazin inverse II
We study the continuity of the generalized Drazin inverse for elements of Banach algebras and bounded linear operators on Banach spaces. This work extends the results obtained by the second author on the conventional Drazin inverse.
Continuity of the spectrum of norm-normal matrices
Continuity properties of best analytic approximation.
Continuity versus boundedness of the spectral factorization mapping
This paper characterizes the Banach algebras of continuous functions on which the spectral factorization mapping 𝔖 is continuous or bounded. It is shown that 𝔖 is continuous if and only if the Riesz projection is bounded on the algebra, and that 𝔖 is bounded only if the algebra is isomorphic to the algebra of continuous functions. Consequently, 𝔖 can never be both continuous and bounded, on any algebra under consideration.
Continuous dependence of solutions for ill-posed evolution problems.
Continuous factorizations of covariance operators and Gaussian processes
Continuous restrictions of linear maps between Banach spaces
Contractions à spectre dénombrable et propriétés d'unicité des fermés dénombrables du cercle
On montre que si est une contraction à spectre dénombrable et telle que, pour tout
Contractions de classe et sous-éspaces invariants
Contractions of product density operators of systems of identical fermions and bosons.
Contractions similar to isometries
Contractive couplings
Contractive projections on the fixed point set of contractions
Contributi all'analisi spettrale algebrica
Contributions à l'étude spectrale des contractions de l'espace de Hilbert
Convergence in the generalized sense relative to Banach algebras of operators and in LMC-algebras
The notion of convergence in the generalized sense of a sequence of closed operators is generalized to the situation where the closed operators involved are affiliated with a Banach algebra of operators. Also, the concept of convergence in the generalized sense is extended to the context of a LMC-algebra, where it applies to the spectral theory of the algebra.
Convergence of an operator series.