University of Virginia

Department of Mathematics

Kerchof Hall, 141 Cabell Drive

Charlottesville, VA 22904

*Email:* obus@virginia.edu

*Office Phone:* 434-924-4930

*Office:* Kerchof 208 Office Hours: Tuesdays 11-12, Wednesdays 10-11

*About Me:* I am an assistant professor in the Department of Mathematics at the University of Virginia. As you can see, I am also an
artistic visionary in the field of web design.

Here is my CV.

** Publications **

2.

3. Vanishing cycles and wild monodromy

4. Fields of moduli of three-point G-covers with cyclic p-Sylow, I, Algebra Number Theory, 6, no. 5 (2012), 833--883

5. The (local) lifting problem for curves, Proceedings for Conferences in Kyoto "Galois-Teichmüller theory and Arithmetic Geometry" (2012), 359--412

6. Fields of moduli of three-point G-covers with cyclic p-Sylow, II, J. Théor. Nombres Bordeaux 25, no. 3 (2013), 579--633

7. Toward Abhyankar's inertia conjecture for PSL_2(\ell), Proceedings of the Luminy Meeting "Groupes de Galois géométriques et différentiels" (2013), 195--206

8. On Colmez's product formula for periods of CM-abelian varieties, Math. Ann. 356, no. 2 (2013), 401--418

9. Conductors of wild extensions of local fields, especially in mixed characteristic (0, 2), Proc. Amer. Math. Soc. 142 (2014), 1485--1495

10. (with Stefan Wewers) Cyclic extensions and the local lifting problem, Ann. of Math. 180, no. 1 (2014), 233--284

11. (with Colin Ingalls, Ekin Ozman, and Bianca Viray) Unramified Brauer Classes on cyclic covers of the projective plane (with an appendix by Hugh Thomas) (32 pp.), Proceedings of the AIM Workshop, "Brauer groups and obstruction problems: Moduli and arithmetic," to appear.

12. Good reduction of three-point Galois covers (15 pp.), submitted

13. (with David Harbater, Rachel Pries, and Kate Stevenson) Abhyankar's conjectures in Galois theory: Current status and future questions (44 pp.), Abhyankar Legacy Volume, to appear.

14. A generalization of the Oort conjecture (58 pp.), submitted

15. (with Stefan Wewers) Wild Ramification Kinks (29 pp.), Res. Math. Sci., to appear.

16. The local lifting problem for A_4 (8 pp.), submitted

Current Teaching

**Math 8630 (Algebraic Number Theory)
**

**Former Teaching **

Math 8620 (Virginia, Fall 2014)

Math 7754 (Virginia, Spring 2014)