Gauged Six-dimensional Supergravity from Massive Type IIA

TL;DR

This paper derives a comprehensive non-linear reduction ansatz for transforming massive type IIA supergravity into six-dimensional Romans F(4) gauged supergravity via a consistent warped S^4 reduction.

Contribution

It provides the first complete non-linear Kaluza-Klein ansatz for this specific supergravity reduction from ten to six dimensions.

Findings

Explicit non-linear reduction ansatz derived

Consistent warped S^4 reduction established

Framework for further supergravity compactifications

Abstract

We obtain the complete non-linear Kaluza-Klein ansatz for the reduction of the bosonic sector of massive type IIA supergravity to the Romans F(4) gauged supergravity in six dimensions. The latter arises as a consistent warped S^4 reduction.