English

Krivine's Function Calculus and Bochner integration

Functional Analysis 2019-01-23 v2

Abstract

We prove that Krivine's Function Calculus is compatible with integration. Let (Ω,Σ,μ)(\Omega,\Sigma,\mu) be a finite measure space, XX a Banach lattice, xXnx\in X^n, and f ⁣:Rn×ΩRf\colon\mathbb R^n\times\Omega\to\mathbb R a function such that f(,ω)f(\cdot,\omega) is continuous and positively homogeneous for every ωΩ\omega\in\Omega, and f(s,)f(s,\cdot) is integrable for every sRns\in\mathbb R^n. Put F(s)=f(s,ω)dμ(ω)F(s)=\int f(s,\omega)d\mu(\omega) and define F(x)F(x) and f(x,ω)f(x,\omega) via Krivine's Function Calculus. We prove that under certain natural assumptions F(x)=f(x,ω)dμ(ω)F(x)=\int f(x,\omega)d\mu(\omega), where the right hand side is a Bochner integral.

Cite

@article{arxiv.1712.09328,
  title  = {Krivine's Function Calculus and Bochner integration},
  author = {Vladimir G Troitsky and Mehmet Selçuk Türer},
  journal= {arXiv preprint arXiv:1712.09328},
  year   = {2019}
}
R2 v1 2026-06-22T23:29:29.346Z