English

Lie ring isomorphisms between nest algebras on Banach spaces

Functional Analysis 2014-02-18 v2 Operator Algebras

Abstract

Let N{\mathcal N} and M{\mathcal M} be nests on Banach spaces XX and YY over the (real or complex) field F\mathbb F and let \mboxAlgN\mbox{\rm Alg}{\mathcal N} and \mboxAlgM\mbox{\rm Alg}{\mathcal M} be the associated nest algebras, respectively. It is shown that a map Φ:AlgNAlgM\Phi:{\rm Alg}{\mathcal N}\rightarrow{\rm Alg}{\mathcal M} is a Lie ring isomorphism (i.e., Φ\Phi is additive, Lie multiplicative and bijective) if and only if Φ\Phi has the form Φ(A)=TAT1+h(A)I\Phi(A) = TAT^{-1} + h(A)I for all A\mboxAlgNA\in \mbox{\rm Alg}{\mathcal N} or Φ(A)=TAT1+h(A)I\Phi(A)=-TA^*T^{-1}+h(A)I for all A\mboxAlgNA\in \mbox{\rm Alg}{\mathcal N}, where hh is an additive functional vanishing on all commutators and TT is an invertible bounded linear or conjugate linear operator when dimX=\dim X=\infty; TT is a bijective τ\tau-linear transformation for some field automorphism τ\tau of F\mathbb F when dimX<\dim X<\infty.

Keywords

Cite

@article{arxiv.1301.7553,
  title  = {Lie ring isomorphisms between nest algebras on Banach spaces},
  author = {Xiaofei Qi and Jinchuan Hou and Juan Deng},
  journal= {arXiv preprint arXiv:1301.7553},
  year   = {2014}
}

Comments

27 pages

R2 v1 2026-06-21T23:18:27.461Z