English

Moduli spaces of noncommutative instantons: gauging away noncommutative parameters

Quantum Algebra 2013-06-11 v2 High Energy Physics - Theory Mathematical Physics math.MP

Abstract

Using the theory of noncommutative geometry in a braided monoidal category, we improve upon a previous construction of noncommutative families of instantons of arbitrary charge on the deformed sphere S^4_\theta. We formulate a notion of noncommutative parameter spaces for families of instantons and we explore what it means for such families to be gauge equivalent, as well as showing how to remove gauge parameters using a noncommutative quotient construction. Although the parameter spaces are a priori noncommutative, we show that one may always recover a classical parameter space by making an appropriate choice of gauge transformation.

Keywords

Cite

@article{arxiv.0909.4402,
  title  = {Moduli spaces of noncommutative instantons: gauging away noncommutative parameters},
  author = {Simon Brain and Giovanni Landi},
  journal= {arXiv preprint arXiv:0909.4402},
  year   = {2013}
}

Comments

v2: 44 pages; minor changes. To appear in Quart. J. Math

R2 v1 2026-06-21T13:49:56.877Z