In the solar system as elsewhere, we learn most from the
unexpected. I will describe three recent observational projects
challenging existing ideas about solar system objects, and
provoking new ones. The freaks are an interstellar object
(‘Oumuamua)...
For a weighted homogeneous polynomial and a choice of a diagonal
symmetry group, we define a new Fukaya category based on wrapped
Fukaya category of its Milnor fiber together with monodromy
information. It is analogous to the variation operator in...
