I am an algebraic geometer who uses geometric techniques to study problems in number theory and algebra. I have interests in birational geometry, rational surfaces, toric varieties, Galois cohomology, and essential dimension.
Publications and Preprints
A. Duncan. Twisted forms of toric varieties. (Preprint)
I. Dolgachev, A. Duncan. Fixed points of a finite subgroup of the plane Cremona group. (Preprint)
A. Duncan, Z. Reichstein. Versality of algebraic group actions and rational points on twisted varieties. To appear in J. Algebraic Geom.
A. Duncan. Finite groups of essential dimension 2. Comment. Math. Helv. 88 (2013), no. 3, 555-585.
A. Duncan. Essential dimensions of A7 and S7. Math. Res. Lett. 17 (2010), no. 2, 263-266.
A. Duncan, Z. Reichstein. SAGBI bases in rings of invariant Laurent polynomials. Proc. Amer. Math. Soc. 137 (2009), no. 3, 835-844.
(See CTools for course materials).
Fall 2014 - Math 217/008
Fall 2014 - Math 217/001
Fall 2013 - Math 217/006
Fall 2013 - Math 217/005
Winter 2013 - Math 217/001
Fall 2012 - Math 115/016