S. Dilworth

activity

19982005

most citedSpectrum of a weakly hypercyclic operator meets the unit circle

2 citations · 2 across the 3 of their papers we have counts for

collaborators

Showing 2000Show all

3 papers · 1 filter

math.FA2000

Extremal Approximately Convex Functions and the Best Constants in a Theorem of Hyers and Ulam

S. J. Dilworth, Ralph Howard, James W. Roberts

Let $n \geq 1$ and $B \geq 2$ . A real-valued function $f$ defined on the $n$ -simplex $Δ_{n}$ is approximately convex with respect to $Δ_{B - 1}$ iff f(\sum_{i=1}^B t_ix_i) \le \sum_{i=1}^B t…

math.FA2000

A Conditional Quasi-greedy Basis of l_1

S. J. Dilworth, David Mitra

We show that the Lindenstrauss basic sequence in l_1 may be used to construct a conditional quasi-greedy basis of l_1, thus answering a question of Wojtaszczyk. We further show tha…

math.FA2000

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 $L_{1}$ .

Extremal Approximately Convex Functions and the Best Constants in a Theorem of Hyers and Ulam

A Conditional Quasi-greedy Basis of l_1

Dual Banach spaces which contain an isometric copy of L1​

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