# Ruth Charney

Degrees

Princeton University, Ph.D.Brandeis University, B.A.

Expertise

geometric group theory, topologyProfile

Ruth Charney is the Theordore and Evelyn G. Berenson Professor of Mathematics. Her expertise is in the fields of Geometric Group Theory and Topology. In geometric group theory, one studies groups of symmetries of geometric objects, using the geometry to better understand the algebraic structure of these groups. Charney's work focuses on the geometry of metric spaces of non-positive curvature and their symmetry groups. She enjoys giving lectures that give insight into the beauty of abstract mathematics to the general public. In addition, she is involved in a variety of activities designed to support women and other under-represented groups in mathematics, She served as President of the Association for Women in Mathematics (AWM) from 2013-15, and she is currently serving as President of the American Mathematical Society (AMS), the largest professional society in the field. She is also a Fellow of both the AMS and the AWM. WebpageCourses Taught

MATH | 23b | Introduction to Proofs |

MATH | 39a | Introduction to Combinatorics |

MATH | 104a | Introduction to Topology |

MATH | 151a | Topology I |

Awards and Honors

President, American Mathematical Society (2021 - 2023)

President-elect American Mathematical Society (2020 - 2021)

Plenary Lecture, Joint Mathematics Meeting 2018 (2018)

Fellow of the Association for Women in Mathematics (2017)

Theodore and Evelyn G. Berenson Chair in Mathematics (2016)

MAA Polya Lectrurer (2013 - 2015)

President, Association for Women in Mathematics (2013 - 2015)

Fellow of the American Mathematical Society (2012)

Trustee, American Mathematical Society (2012 - 2017)

Mathematical Association of America Distinguished Lecturer (2008)

Executive Committee, American Mathematical Society (2007 - 2011)

Harry S. Levitan Reading and Education Prize (2007)

Trustee, Mathematical Sciences Research Institute (2007 - 2015)

Vice President of the American Mathematical Society (2005 - 2009)

Invited Research Professor, Universite de Dijon, France (2004)

Visting member, Institute for Advanced Study (1992 - 1993)

Visting member, Institute for Advanced Study (1986 - 1987)

Visting member, Institutes des Houtes Etudes Scientifiques, Paris (1982 - 1983)

Yale Junior Faculty Fellowship (1982 - 1983)

NSF Postdoctoral Fellowship (1979 - 1980)

Scholarship

Boyd, Rachael, Charney, Ruth, Morris-Wright, Rose. "A Deligne complex for Artin monoids." __Journal of Algebra__ (2020). (forthcoming)

Charney, Ruth, Cordes, Matthew, and Sisto, Alessandro. "Complete topological description of certain Morse boundaries." __Groups, Geometry and Dynamics__ (2020). (forthcoming)

Bregman, Corey, Charney, Ruth, and Vogtmann, Karen. "Outer Space for RAAGs." __arXiv:2007.09725__ (2020).

Charney, Ruth and Morris-Wright, Rose. "Artin groups of infinite type: trivial centers and acylindical hyperbolicity." __Proc. Amer. Math. Soc.__ 147. 9 (2019): 3675--3689.

Charney, Ruth. "Searching for Hyperbolicity." __Advances in the Mathematical Sciences, AWM Research Symposium__. vol. 15 Ed. Deines et al. Springer-Verlag, 2018. 1-14.

R. Charney, M. Cordes, and D. Murray. "Quasi-Mobius Homeomorphisms of Morse boundaries." __Bull. London Math. Soc.__ 51. 3 (2018): 501--515.

R. Charney, N. Stambaugh, and K. Vogtmann. "Outer space for untwisted automorphisms of right-angled Artin groups." __Geometry and Topology__ 21. 2 (2017): 1131-1178.

R. Charney and H. Sultan. "Contracting boundaries of CAT(0) spaces." __Journal of Topology__ 8. 1 (2015): 93-117.

R. Charney and L. Paris. "Convexity of parabolic subgroups in Artin groups." __Bull. London Math. Soc.__ 46. 6 (2014): 1248-1255.

R. Charney and M. Margolis. "Length functions of actions of right-angled Artin groups." __Geometriae Dedicata__ 166. (2013): 31--45.

R. Charney and J. Behrstock. "Divergence and quasimorphisms of right-angled Artin groups." __Mathematische Annalen__ 352. (2012): 339--356.

R. Charney and M. Farber. "Random groups arising as graph products." __Algebraic and Geometric Topology__ 12. 2 (2012): 979--995.

Charney, Ruth and Vogtmann, Karen. "Subgroups and quotients of automorphisms of RAAGs." __AMS Proceedings of Symposia in Pure Mathematics__ 82. (2011): 9-27.

R. Charney, J. Cohen and A. Rizk. "Efficient Synthesis of a Class of Boolean Programs from I-O Data: Application to Genetic Networks." __Discrete Applied Mathematics__ 159. 6 (2011): 410-419.

R. Charney, K. Ruane, N. Stambaugh, and A. Vijayan. "Automorphism groups of graph groups with no SIL." __Illinois Journal of Math__ 54. 1 (2011): 249-262.

Charney, Ruth and Vogtmann, Karen. "Finiteness properties of automorphism groups of right-angled Artin groups." __Bulletin, London Mathematical Society__ 41. 1 (2009): 94--102.

Charney, Ruth, Bux, K.-U., and Vogtmann, K.. "Automorphisms of two-dimensional RAAGS and partially symmetric automorphisms of free groups." __Groups, Geometry, and Dynamics__ 3. (2009): 525--539.

Charney, Ruth, and Vogtmann, Karen. "Automorphism groups of right-angled Artin groups." __L'Enseignement Mathematique__ 54. (2008): 71-72.

Charney, Ruth and Crisp, John. "Relative hyperbolicity and Artin groups." __Geometriae Dedicata__ 129. (2007): 1-13.

Charney, Ruth, Crisp, John and Vogtmann, Karen. "Automorphisms of 2-dimensional right-angled Artin groups." __Geometry & Topology__ 11. (2007): 2227-2264.

Charney, Ruth. "An introduction to right-angled Artin groups." __Geometriae Dedicata__ 125. (2007): 141-158.

Charney,Ruth and Crisp, John. "Automorphis groups of some affine and finite type Artin group." __Mathematical Research Letters__ 12. (2005): 321--333.

Charney, Ruth. "The Deligne complex for the four-strand braid group." __Transactions AMS__ 356. (2004): 3881--3897.

Charney,Ruth and Meier, John. "The language of geodesics for Garside groups." __Mathematische Zeitschrift__ 248. (2004): 495-509.

Charney,Ruth, Meier, John, and Whittlesey, Kim. "Bestvina's normal form comples and the homology of Garside groups." __Geometriae Dedicata__ 105. (2004): 171-188.

Charney,Ruth. "The Deligne complex for the four-strand braid group." __Transactions AMS__ (2004): 3881-3897.

Charney,Ruth, Peifer, D.. "The K(pi,1)-conjecture for the Affine braid groups." __Commentari Math. Helv.__ (2003): 584-600.

Charney,Ruth, Davis, M.W.. "The K(pi,1)-problem for hyperplane complements associated to infinite reflection groups." __Journal of the AMS__ (1995): 597--627.