Comments on a-maximization from gauged supergravity

Understand

In this paper we study the holographic dual to a-maximization in five-dimensional N = 2 gauged supergravity.

• In particular, we apply the procedure described by Tachikawa to specific examples consisting of holographic duals to gauge theories arising as the IR limit of N M5-branes wrapping a Riemann surface.
• A key element of this analysis is a consistent truncation of seven-dimensional N = 4 SO(5) gauged supergravity reduced on a Riemann surface.
• We demonstrate the consistency of this truncation and match to a sector of five-dimensional matter-coupled N = 2 gauged supergravity.