Exact static solutions in four dimensional Einstein-Maxwell-Dilaton gravity

TL;DR

This paper presents new exact static solutions in four-dimensional Einstein-Maxwell-Dilaton gravity, expanding on known solutions and analyzing their singularity structures, including globally naked strong curvature singularities.

Contribution

The paper introduces new exact static solutions in Einstein-Maxwell-Dilaton gravity beyond previously known ones, with detailed analysis of their singularities.

Findings

Most solutions exhibit globally naked strong curvature singularities.

New solutions extend the known solution space in Einstein-Maxwell-Dilaton gravity.

Charged dilaton black hole solutions are exceptions with different properties.

Abstract

Classes of exact static solutions in four-dimensional Einstein-Maxwell-Dilaton gravity are found. Besides of the well-known solutions previously found in the literature, new solutions are presented.It's shown that spherically symmetric solutions, except the case of charged dilaton black hole, represent globally naked strong curvature singularities.