56 citations · 101 across the 13 of their papers we have counts for
13 papers
Lattices of strongly reflexive masa-bimodules
Rupert H. Levene, Ying-Fen Lin, Ivan G. Todorov
We characterise the density of the positive rank one subspace of a masa-bimodule in terms of its support. We prove that strongly reflexive masa-bimodules form a Boolean lattice und…
Operator systems and positive extensions over discrete groups
Evgenios T. A. Kakariadis, Malte Leimbach, Ivan G. Todorov +1
The extension problem asks whether positive semi-definite functions on a symmetric unital subset of a discrete group can be extended to positive semi-definite functions on the whol…
Symmetrisations of operator spaces
George K. Eleftherakis, Evgenios T. A. Kakariadis, Ivan G. Todorov
Let be a unital C*-algebra, be an operator -system and be an operator space that is a left operator -module. We introduce the symmetrisation of the pair a…
Perfect strategies for non-signalling games
M. Lupini, L. Mancinska, V. I. Paulsen +5
We unify and consolidate various results about non-signall-ing games, a subclass of non-local two-player one-round games, by introducing and studying several new families of games…
Norms of vector functionals
M. Anoussis, N. Ozawa, I. G. Todorov
We examine the question of when, and how, the norm of a vector functional on an operator algebra can be controlled by the invariant subspace lattice of the algebra. We introduce a…
Schur idempotents and hyperreflexivity
G. K. Eleftherakis, R. H. Levene, I. G. Todorov
We show that the set of Schur idempotents with hyperreflexive range is a Boolean lattice which contains all contractions. We establish a preservation result for sums which implies…