Greek Neoplatonism, with emphasis on Proclus.
Relationship between henology and individuation and polytheism.
Relationship between Proclus' hierarchies and abstract mathematics.
Publications:
"The One and the Many: Part I: the One," Dionysius 24, 2006, 75-98.
"The One and the Many: Part II: the Many," Dionysius 25, 2007 (pending).