Late Ancient Neoplatonism, especially the Christian Neoplatonism of Pseudo-Dionysius (nature and arrangment of divine names, unity of the corpus, grammatical techniques of ineffability)
How To Say What Can't Be Said: Techniques and Rules of Ineffability in the Dionysian Corpus (dissertation, 2005)
"Ineffability Performance in the Dionysian Corpus" (under review)
"Three Abuses of Pseudo-Dionysius for Comparative Theology" (in process)