TITLE: Open questions about trisections of 4-manifolds

ABSTRACT: 
Trisections are the 4-dimensional analog of Heegaard splittings of 3-manifolds
and, via this analogy, many 3-dimensional statements have natural
4-dimensional analogs. However, the 3-dimensional proofs do not always have
4-dimensional analogs, unfortunately, and so fundamental 3-dimensional
theorems become interesting 4-dimensional problems. I have been stuck on such
hard problems for a while, so the focus of this talk will be on advertising
some of them, their connections to each other and other problems outside the
world of trisections, and my incremental progress to date.