M. Girardi

activity

19932025

most citedDual Banach spaces which contain an isometric copy of

L_{1}

20 citations · 39 across the 9 of their papers we have counts for

collaborators

9 papers

math.CA2025

Continuous nowhere differentiable multivariate functions

Maria Girardi, Ralph Howard

Let $U$ be an open set in $R^{d}$ . A continuous function $f : U \to R$ is strongly nowhere differentiable if and only if for each $γ \in (0, 1]$ and for each unit…

math.FA2000★ 20 cited

Dual Banach spaces which contain an isometric copy of $L_{1}$

S. J. Dilworth, Maria Girardi, J. Hagler

A Banach space contains asymptotically isometric copies of $ℓ_{1}$ if and only if its dual space contains an isometric copy of $L_{1}$ .

math.FA2000

The dual of the James Tree space is asymptotically uniformly convex

Maria Girardi

The dual of the James Tree space is asymptotically uniformly convex.

math.FA1999★ 6 cited

Geometry of Banach spaces and biorthogonal systems

S. J. Dilworth, Maria Girardi, W. B. Johnson

A separable Banach space X contains $ℓ_{1}$ isomorphically if and only if X has a bounded wc_0^*-stable biorthogonal system. The dual of a separable Banach space X fails the Schur…

math.FA1996

On Various Modes of Scalar Convergence in L_0(X)

Stephen J. Dilworth, Maria Girardi

A sequence ${f_{n}}$ of strongly-measurable functions taking values in a Banach space $\X$ is scalarly null aė\. (resp. scalarly null in measure) if $x^{*} f_{n} \to 0$ aė\. (res…

math.FA1995

Universal Non-Completely-Continuous Operators

Maria Girardi, William B. Johnson

A bounded linear operator between Banach spaces is called {\it completely continuous} if it carries weakly convergent sequences into norm convergent sequences. Isolated is a univer…