## Research Interests for Chad Schoen

**Research Interests:** *Algebraic Geometry*
I work on the geometry and arithmetic of figures defined by polynomial equations.
I am especially interested in the geometry of algebraic curves, surfaces, threefolds and fourfolds over the complex numbers,
over numbers fields, over finite fields, over fields of transcendence degree one over finite fields and over discrete valuation rings with
perfect residue field. More specifically
I study elliptic surfaces, elliptic threefolds, Calabi-Yau
varieties, abelian varieties and surfaces of general type.
I am interested in Chow groups of algebraic varieties and
the relationship between a variety's Chow groups and its
arithmetic and geometric properties.

**Areas of Interest:**
Geometry of algebraic varieties

Algebraic Cycles

Chow Groups

**Recent Publications**
- Schoen, C,
*An arithmetic ball quotient surface whose Albanese variety is not of CM type*,
Electronic Research Announcements in Mathematical Sciences, vol. 21
(September, 2014),
pp. 132-136, American Institute of Mathematical Sciences [doi]
- Schoen, C,
*Torsion in the cohomology of desingularized fiber products of elliptic surfaces*,
Michigan Mathematical Journal, vol. 62 no. 1
(2013),
pp. 81-115, ISSN 0026-2285 [doi]
- Schoen, C,
*The geometric genus of a desingularized fiber product of elliptic surfaces*,
Proceedings of the American Mathematical Society, vol. 141 no. 3
(2013),
pp. 745-752, ISSN 0002-9939 [doi] [abs]
- Schoen, C,
*Invariants of regular models of the product of two elliptic curves at a place of multiplicative reduction*,
in Arithmetic and Geometry of K3 surfaces and Calabi-Yau Threefolds, Fields Institute Communications 67, edited by Laza, R. ; Schuett, M; and Yui, N.,
Arithmetic and geometry of K3 surfaces and Calabi-Yau threefolds, vol. 67
(2013),
pp. 461-487, SPRINGER, ISBN 978-1-4614-6402-0
- Schoen, C,
*Desingularized fiber products of semi-stable elliptic surfaces with vanishing third Betti number*,
Compositio Mathematica, vol. 145 no. 1
(2009),
pp. 89-111, ISSN 0010-437X [doi] [abs]