English

Normed representations of weight quivers

Representation Theory 2025-07-16 v2 Category Theory Functional Analysis

Abstract

Let AA and BB be two tensor rings given by weight quivers. We introduce norms for tensor rings and (A,B)(A,B)-bimodules, and define an important category Aςp\mathscr{A}^p_{\varsigma} in this paper whose object is a triple (N,v,δ)(N,v,\delta) given by an (A,B)(A,B)-bimodule NN, a special element vVv\in V satisfying some special conditions, and a special (A,B)(A,B)-homomorphism δ:Np2dimAN\delta: N^{\oplus_p 2^{\dim A}} \to N and each morphism (N,v,δ)(N,v,δ)(N,v,\delta) \to (N',v',\delta') is given by an (A,B)(A,B)-homomorphism θ:NN\theta: N\to N' such that θ(v)=v\theta(v)=v' and δθ2dimA=θδ\delta' \theta^{\oplus 2^{\dim A}} = \theta\delta hold. We show that Aςp\mathscr{A}^p_{\varsigma} has an initial object such that Daniell integration, Bochner integration, Lebesgue integration, Stone--Weierstrass Approximation Theorem, power series expansion, and Fourier series expansion are morphisms in Aςp\mathscr{A}^p_{\varsigma} starting with this initial object.

Cite

@article{arxiv.2507.06962,
  title  = {Normed representations of weight quivers},
  author = {Yu-Zhe Liu},
  journal= {arXiv preprint arXiv:2507.06962},
  year   = {2025}
}

Comments

50 pages, 5 figures

R2 v1 2026-07-01T03:53:24.171Z