We describe the defining observations of the solar cycle that provide constraints for the
dynamo processes operating within the Sun. Specifically, we report on the following topics …

Contemporary three-dimensional physics-based simulations of the solar convection zone
disagree with observations. They feature differential rotation substantially different from the …

This thesis explores the dynamics of convection-driven dynamos in rotating spherical shells
through three detailed studies. The first study investigates the relative importance of helicity …