Emily Stark

Department of Mathematics
Technion - Israel Institute of Technology
Zuckerman postdoctoral fellow

E-mail: emily.stark at

Office: Amado 604

Mailing Address:
Faculty of Mathematics
Israel Institute of Technology
Haifa 32000



My research is in geometric group theory and low-dimensional topology and focuses on spaces with hyperbolic and nonpositive curvature. My interests include quasi-isometric classification and rigidity, notions of commensurability, group boundaries, and surfaces and 3-manifolds.

My Ph.D. adviser was Genevieve Walsh.


Hyperbolic groups that are not abstractly coHopfian.
(Joint with Daniel Woodhouse.)

Cannon--Thurston maps for CAT(0) groups with isolated flats.
(Joint with Benjamin Beeker, Matthew Cordes, Giles Gardam, and Radhika Gupta.)

Nonplanar graphs in boundaries of CAT(0) groups.
(Joint with Kevin Schreve.)
Submitted, (2018).

The visual boundary of hyperbolic free-by-cyclic groups.
(Joint with Yael Algom-Kfir and Arnaud Hilion.)
Submitted, (2018).

Quasi-isometric groups with no common model geometry.
(Joint with Daniel Woodhouse.)
Journal of the London Mathematical Society. To appear.

Detecting a subclass of torsion-generated groups.
Algebraic and Geometric Topology. 18-7 (2018) 4037-4068.

Surface group amalgams that (don't) act on 3-manifolds.
(Joint with G. Christopher Hruska and Hung Cong Tran.)
American Journal of Mathematics. To appear.

Topological rigidity fails for quotients of the Davis complex.
Proceedings of the American Mathematical Society. 146 (2018), no.12, 5357-5366.

Commensurability for certain right-angled Coxeter groups and geometric amalgams of free groups.
(Joint with Pallavi Dani and Anne Thomas.)
Groups, Geometry, and Dynamics. 12 (2018) 1273-1341.

Abstract commensurability and quasi-isometric classification of hyperbolic surface group amalgams.
Geometriae Dedicata. (2017) 186(1), 39-74.

Intrinsically linked graphs in RP^3.
(Joint with Jared Federman, Joel Foisy, and Kristen McNamara.)
Involve Journal of Mathematics. (2017) Vol.10-1, 1-20.

Intrinsically linked graphs in projective space.
(Joint with Jason Bustamante, Jared Federman, Joel Foisy, Kenji Kozai, Kevin Matthews, Kristen McNamara, and Kirsten Trickey.)
Algebraic and Geometric Topology. Vol. 9 (2009) 1255-1274. (arXiv)


The visual boundary of hyperbolic free-by-cyclic groups.
  CIRM - Centre International de Rencontres Mathematiques; Luminy, France. February 2018.
Commensurability classification of certain right-angled Coxeter groups and surface amalgams.
  Isaac Newton Institute for Mathematical Sciences; Cambridge, England. January 2017.


At Tufts University, I was the primary instructor for the following courses:
    Applied Calculus II (Spring 2014)
    Applied Calculus II (Fall 2013)
    Calculus II (Summer 2013)
    Applied Calculus II (Spring 2013)
    Introduction to Calculus (Fall 2012)

Summer Projects in Mathematics, a program held at the Technion for undergraduates to experience research-level mathematics. I co-led a group in geometric group theory in 2018.

Summer@ICERM, a research experience for undergraduates at Brown University. I mentored projects in Summer 2015 on applied topology and dynamics.

The Math Circle, a program for young students to work on problems in pure math. I instructed eight ten-week Boston-area Math Circle classes 2012-2015.

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