Weak Compactness, Pseudo-reflexivity and Quasi-reflexivity.
Some Remarks on Domination of Sequences.
On best Approximation of Continuous Functions.
Bases and Quasi-reflexivity of Banach Spaces.
On the Extension of Continuous Linear Functionals and Best Approximation in Normed Linear Spaces.
Choquet Spaces and Best Approximation.
On Banach spaces reflexive with respect to a linear subspace of their conjugate space. II.
A remark on reflexivity and summability
Basic sequences and reflexivity of Banach spaces
Weak* bases in conjugate Banach spaces
On the constants of basic sequences in Banach spaces
On minimal sequences of type and bounded biorthogonal systems in Banach spaces
On a theorem of V. Pták concerning best approximation of continuous functions in the metric
On non-equivalent bases and conditional bases in Banach spaces
Basic sequences and reflexivity of Banach spaces
On conditional bases of
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Isomorphismes entre algèbres d'opérateurs pseudo-différentiels
An estimate of the gap of the first two eigenvalues in the Schrödinger operator
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