18 citations · 18 across the 5 of their papers we have counts for
13 papers · 1 filter
Sequential isomorphisms between the sets of von Neumann algebra effects
Lajos Molnar
In this paper we describe the structure of all sequential isomorphisms between the sets of von Neumann algebra effects. It turns out that if the underlying algebras have no commuta…
Linear maps on the space of all bounded observables preserving maximal deviation
L. Molnar, M. Barczy
In this paper we determine all the bijective linear maps on the space of bounded observables which preserve a fixed moment or the variance. Nonlinear versions of the corresponding…
Local automorphisms of operator algebras on Banach spaces
Lajos Molnar
In this paper we extend a result of Semrl stating that every 2-local automorphism of the full operator algebra on a separable infinite dimensional Hilbert space is an automorphism.…
Local automorphisms of some quantum mechanical structures
Lajos Molnar
Let H be a separable infinite dimensional complex Hilbert space. We prove that every continuous 2-local automorphism of the poset (that is, partially ordered set) of all idempotent…
Jordan maps on standard operator algebras
Lajos Molnar
Jordan isomorphisms of rings are defined by two equations. The first one is the equation of additivity while the second one concerns multiplicativity with respect to the so-called…
On isomorphisms of standard operator algebras
Lajos Molnar
The aim of this paper is to show that between standard operator algebras every bijective map with a certain multiplicativity property related to Jordan triple isomorphisms of assoc…