G. Androulakis

activity

19962023

most citedTwisted sums, Fenchel-Orlicz spaces and property (M)

13 citations · 63 across the 32 of their papers we have counts for

collaborators

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19 papers · 1 filter

math.FA2015

The closedness of the generator of a semigroup

George Androulakis, Matthew Ziemke

We study semigroups of bounded operators on a Banach space such that the members of the semigroup are continuous with respect to various weak topologies and we give sufficient cond…

math.FA2009

Almost invariant half-spaces of operators on Banach spaces

George Androulakis, Alexey I. Popov, Adi Tcaciuc +1

We introduce and study the following modified version of the Invariant Subspace Problem: whether every operator T on a Banach space has an almost invariant half-space, that is, a s…

math.FA2008

On Banach Spaces containing $l_{p}$ or $c_{0}$

George Androulakis, Nigel Kalton, Adi Tcaciuc

We use the Gowers block Ramsey theorem to characterize Banach spaces containing isomorphs of $ℓ_{p}$ (for some $1 \leq p < \infty$ ) or $c_{0}$ .

math.FA2008★ 1 cited

Hyperinvariant subspace for weighted composition operator on $L^{p} ([0, 1]^{d})$

George Androulakis, Antoine Flattot

The main result of this paper is the existence of a hyperinvariant subspace of weighted composition operator $T f = v f \circ τ$ on $L^{p} ([0, 1]^{d})$ , ( $1 \leq p \leq \infty$ ) when the weig…

math.FA2008★ 2 cited

A new approach to the Ramsey-type games and the Gowers dichotomy in F-spaces

G. Androulakis, S. J. Dilworth, N. J. Kalton

We give a new approach to the Ramsey-type results of Gowers on block bases in Banach spaces and apply our results to prove the Gowers dichotomy in F-spaces.

math.FA2008

Descriptive set theoretic methods applied to strictly singular and strictly cosingular operators

G. Androulakis, K. Beanland

The class of strictly singular operators originating from the dual of a separable Banach space is written as an increasing union of $ω_{1}$ subclasses which are defined using the Sch…