Mark Hagen




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The papers can also be found on the ArXiv in most cases.


Book/conference proceedings


Recent papers
On hierarchical hyperbolicity of cubical groups. With Tim Susse. To appear in Isr. J. Math.

Quasiflats in hierarchically hyperbolic spaces. With Jason Behrstock and Alessandro Sisto. Preprint, 2017.

Panel collapse and its applications. With Nicholas Touikan. Groups, Geometry, and Dynamics. 13:4, 1285-1334, 2019.

Dehn filling Dehn twists. With Fran├žois Dahmani and Alessandro Sisto. To appear in Proc. A. Royal Soc. Edinburgh.

A remark on thickness of free-by-cyclic groups. Illinois J. Math. 63:4, 633-643, 2019.

Projection complexes and quasimedian maps. With Harry Petyt. Preprint, 2019.

Deforming cubulations of hyperbolic groups. With Elia Fioravanti. Preprint, 2019.


Older papers
Special groups with an elementary hierarchy are virtually free-by-Z. With Dani Wise. Groups, Geometry, and Dynamics 4:3, 597-603, 2010.

Weak hyperbolicity of cube complexes and quasi-arboreal groups. J. Topol. 7:2, 385-418, 2014.

On embedding CAT(0) cube complexes into products of trees via colouring their hyperplanes. With Victor Chepoi. J. Comb. Theor. Ser. B 103:4, 428-467, 2013.

The simplicial boundary of a CAT(0) cube complex. Alg. Geom. Topol. 13:3, 1299-1367, 2013.
Corrigendum on Theorem 3.10 in the infinite-dimensional case; finite-dimensional case is unaffected (journal version).
Cocompactly cubulated crystallographic groups. J. Lond. Math. Soc. 90 (1): 140-166, 2014.

Cubulated groups: thickness, relative hyperbolicity, and simplicial boundaries. With Jason Behrstock. Groups, Geometry, and Dynamics. (10:2) 649-707, 2016.

Cocompactly cubulated graph manifolds. With Piotr Przytycki. Isr. J. Math. 207 (1): 377-394, 2015.
Erratum correcting the proof of Lemma 4.7(2) (journal version).
Cubulating hyperbolic free-by-cyclic groups: the irreducible case. With Dani Wise. Duke Math. Jour. (165:9) 1753-1813, 2016.

Thickness, relative hyperbolicity, and randomness in Coxeter groups. With Jason Behrstock and Alessandro Sisto, appendix with Pierre-Emmanuel Caprace. Alg. Geom. Topol. (17:2) 705-740, 2016.
Software associated with the above paper.
Residual finiteness growths of virtually special groups. With Khalid Bou-Rabee and Priyam Patel. Math. Zeit. 279 (1-2): 297-310, 2015.

Cubulating hyperbolic free-by-cyclic groups: the general case. With Dani Wise. Geom. Funct. Anal. 25:1, 134-179, 2015.

Hierarchically hyperbolic spaces I: curve complexes for cubical groups. With Jason Behrstock and Alessandro Sisto. Geom. Topol. (21:3) 1731-1804, 2017.

Quantifying separability in virtually special groups. With Priyam Patel. Pacific Jour. Math. (284:1) 103-120, 2016.

Global structural properties of random graphs. With Jason Behrstock, Victor Falgas-Ravry, and Tim Susse. Int. Math. Res. Not. 2018:5, 1411-1441, 2018.
Source code and data alluded to in the above paper.
Hierarchically hyperbolic spaces II: Combination theorems and the distance formula. With Jason Behrstock and Alessandro Sisto. Pacific J. Math. (299:2) 257-338, 2019.

Asymptotic dimension and small-cancellation for hierarchically hyperbolic spaces and groups. With Jason Behrstock and Alessandro Sisto. Proc. Lond. Math. Soc. (114:5) 890-926, 2017.

Acylindrical hyperbolicity of cubical small-cancellation groups. With Goulnara Arzhantseva. Preprint, 2016.

Boundaries and automorphisms of hierarchically hyperbolic spaces. With Matthew Durham and Alessandro Sisto. Geom. Topol. (21:6) 3659-3758, 2017.
Corrigendum fixing an error affecting the proofs of Theorem 7.1 and Theorem 9.15.
Cubulating mapping tori of polynomial growth free group automorphisms. With Dani Wise. Preprint, 2016.