Jack Hanson

City College of NY [email protected] Dept. of Mathematics 1 (212) 650 - 5174 NAC 6/292

Appointments

• Assistant Professor, City College of NY Dept. of Mathematics, 01/2016–present

• Visiting Assistant Professor, GA Tech Dept. of Mathematics, 8/2015–01/2016

• Zorn Postdoctoral Fellow, Indiana University Dept. of Mathematics. 8/2013–7/2015

Education

• Ph.D., Physics, Princeton University, June 2013.

Advisor: Michael Aizenman

• M.A., Physics, Princeton University, 2010.

• B.S. Summa cum Laude, Physics, Rutgers University, 2008.

Double major, Physics and Mathematics.

Funding

• NSF Grant DMS-1612921, “Correlations and Scaling in Disordered and Critical Stochastic Models”, 2016 – 2019. $100,000.

• (Funded but declined in favor of NSF) NSA Young Investigator Grant, 2016 – 2018. $40,000.

• AMS-Simons travel grant, 2015 – 2016.

• NSF Graduate Research Fellow, 2008 - 2013.

Talks

• Upcoming, untitled

– Conference on Random Walks, Random Graphs and Random Media at LMU, Munich, 9 / 2019

• “Universality of the time constant for critical first-passage percolation on the triangular lat- tice”

– MIT Probability Seminar, 3/2019

1 – CUNY Probability Seminar, 3/2019 – Ohio State U. Probability Seminar, 4/2019

• “Geodesics in First-Passage Percolation”

– Montr´ealsummer workshop on challenges in probability and mathematical physics, 7/2018.

• “Half-space critical exponents in high-dimensional percolation.”

– Conference on Recent Trends in Continuous and Discrete Probability, GA Tech, 6/2018. – U. of Rochester Probability Seminar, 9/2018 – Columbia U. Probability Seminar, 2/2019 – NYU Probability Seminar, 2/2019

• “The boundary in first-passage percolation”

– Cornell Probability Seminar, 11/2017

• “Strict inequality for the chemical distance exponent in 2d percolation.”

– Stockholm University Probability/Statistics seminar, 8/2017 – CUNY Probability seminar, 9/2017

• “Geodesics and Busemann functions in first-passage percolation”

– AMS short course, Atlanta, 1/2017.

• “Arm exponents in invasion percolation”

– Penn / Temple probability seminar, 11/2016

• “On the chemical distance in critical percolation”

– CCNY Physics colloquium, 9/2016 – Northwestern University workshop on spin glasses, percolation, and related models, 5/2016 – Columbia University probability seminar, 4/2016 – AMS central sectional meeting, 4/2016 – AMS western sectional meeting, 4/ 2016 – CUNY Probability seminar, 2/2016

• “Bigeodesics in first-passage percolation”

– University of Bath summer school invited talk, 6/2016 – NYU probability seminar, 4/2016 – U Alabama Birmingham department colloquium, 3/2016

• “Critical exponents in sandpile models”

2 Cornell Probab. Seminar, 11/2015 GA Tech Probab. Seminar, 10/2015 Indiana U. Probab. Seminar, 5/2015 AMS Midwest sectional meeting, 3/2015

• “Fluctuations and Geodesics in First-passage percolation”

Iowa State Dept. Colloquium, 2/2015 CUNY (CCNY) Dept. Colloquium, 3/2015

• “Convergence of the Mean for Subadditive Ergodic Processes”

Ohio State University Probability Theory Seminar, 10/2014 Harvard Random Matrix and Probability Theory Seminar, 10/2014 Declined two invitations to speak at international conferences

• “Variance and Concentration in First-Passage Percolation”

Indiana University Probability Seminar, 11/2013 U Wisconsin Probability Seminar, 3/2014 University of the Witwatersrand Probability Seminar, 4/2014

• “Sublinear Variance in First-Passage Percolation”

Cornell Probability Summer School, 7/2013

• “Geodesics and Direction in 2d First-Passage Percolation”

University of Chicago Probability / Statistical Physics Seminar, 2/2013

• “Busemann Functions in Half-Plane First-Passage Percolation”

CRM-ISM Probability Seminar, Montreal, 2/2013

• “Geodesics in 2d First-Passage Percolation”

University of Pennsylvania Probability Seminar, 11/2012 Princeton University Ergodic Theory Seminar, 10/2012

• “Correlations in the Ground State of the 2-d Random Field Ising Model”

Graduate Student Probability Conference, April 2011, Georgia Tech.

3 Publications/Preprints

1. (with S. Chatterjee) Restricted percolation critical exponents in high-dimensions. arXiv 1810.03750.

2. (with M. Damron, C. Houdr´eand C. Xu) Lower bounds for fluctuations in first-passage percolation for general distributions. arXiv 1810.08270.

3. (with M. Damron and W-.K. Lam) The size of the boundary in first-passage percolation. Annals of Applied Probability 28, 2018.

4. (with B. Vollmayr-Lee, R. S. McIsaac, and J. D. Hellerick) Anomalous dimension in a two- species reaction-diffusion system. Journal of Physics A 51, 2018.

5. (with M. Damron and P. Sosoe) Strict inequality for the chemical distance exponent in two- dimensional critical percolation. arXiv 1708.03643.

6. Infinite geodesics, asymptotic directions, and Busemann functions in first-passage percolation. In Random Growth Models, Proceedings of Symposia in Applied Mathematics 75, 2018.

7. (with M. Damron and P. Sosoe) Arm events in two-dimensional invasion percolation. Journal of Statistical Physics 173, 2018.

8. (with S. Bhupatiraju and A. A. J´arai). Inequalities for critical exponents in d-dimensional sandpiles. Electronic Journal of Probability 22, 2017.

9. (with M. Damron and P. Sosoe). On the chemical distance in critical percolation II. arXiv 1601.03464.

10. (with M. Damron) Bigeodesics in first-passage percolation. Communications in Mathematical Physics 349, 2017.

11. (with A. Auffinger and M. Damron). 50 years of first-passage percolation. Book, published as Volume 68 of the AMS University Lecture Series, 2017.

12. (with M. Damron and P. Sosoe) On the chemical distance in critical percolation. Electronic Journal of Probability 22, 2017.

13. (With A. Auffinger and M. Damron) Rate of convergence of the mean for sub-additive ergodic sequences. Advances in Mathematics 285, 2015.

14. (With M. Damron and P. Sosoe) Subdiffusive concentration in first-passage percolation. Elec- tronic Journal of Probability 19, 2014.

15. (With M. Damron and P. Sosoe) Sublinear variance in first-passage percolation for general distributions. Probability Theory and Related Fields 163, 2015.

16. (With A. Auffinger and M. Damron) Existence of limiting geodesic graphs for first-passage percolation on subsets of Z2. Annals of Applied Probability 25, 2015.

17. (With M. Damron and P. Sosoe) Subdiffusivity of Random Walk on the 2D Invasion Perco- lation Cluster. Stochastic Processes and their Applications 123, 2013.

4 18. (With M. Damron) Busemann Functions and Infinite Geodesics in Two-Dimensional First- Passage Percolation. Communications in Mathematical Physics 325, 2014.

Conferences Organized / Schools given

Upcoming: Organizer, Program on First-Passage Percolation and Related Models, July 27 – August 14, 2020. ICTS, Bengaluru, India.

Upcoming: Organizer, AMS Special Session on random graph models at Fall 2019 Eastern Sectional Meeting, Binghamton.

Gave lecture as part of a one-day mini-course at Montr´ealsummer workshop on challenges in probability and mathematical physics, Summer 2018.

Lecturer at the 2017 AMS Short Course at the AMS Joint Meetings, January 2017.

Co-ran a course on first-passage percolation at the Bath School and Workshop on Random Interacting Systems, June 2016.

Won funding for and co-organized AIM Workshop on First-passage percolation and related models, August 2015. This workshop will focus on stochastic growth models and random metrics, motivated by recent progress in this field and related “exactly solvable” KPZ-type models.

Service

• Reviewer for: Annals of Probability, Journal of Statistical Physics, Probability Theory and Related Fields, Electronic Journal of Probability, ESAIM Probability and Statistics, Stochas- tic Processes and their Applications, Annals of Applied Probability, Annales Institut Henri Poincare, Journal of Applied Probability / Advances in Applied Probability

• Honors supervision, Casey Bolles, Spring 2017. Honors supervision, Pulkit Singla, Spring 2018. Honors Supervision, Julia Saccamano, Spring 2019.

• Grant peer reviewer for Research Foundation of CUNY (2016)

• Grant reviewer for Netherlands Organization for Scientific Research (NWO), 2017

• Grant reviewer for Swiss National Science Foundation (SNSF), 2018

• Mathscinet reviewer

• Co-wrote departmental proposal for an applied-track Mathematics MS, late spring 2018.

• Organizer, CUNY Probability Seminar. 2018.

• Organizer, CCNY Math Colloquium, Fall 2018 – Present.

5 • Further departmental service: Member, Applied Math Committee (2016 – present). Course supervisor for Math 37600 (mathematical statistics) (Fall 2016 – present). Interim course su- pervisor for Math 37500 (probability) (Spring 2017 – Fall 2018). Member of hiring committee for permanent lecturer positions (Spring 2017).

• Member of thesis committee for student Chen Xu (GA Tech, advisor: Christian Houdr´e), June 2018.

• Informal mentorship role with IU graduate students S. Bhupatiraju and W.-K. Lam involv- ing weekly meetings for multiple years. Extended collaborative relationship with GA Tech graduate student C. Xu. All three cases resulted in co-authored papers.

• Co-organizer, Princeton Brown Bag Mathematical Physics Seminar, 2012–2013.

Summary of courses taught

• At Princeton: freshman electronics lab; assistant for thermal physics, quantum mechanics I

• At IU: Calculus I, Linear Algebra, undergraduate Probability

• At GA Tech: Calculus I

• At CCNY:

– Spring 2016: undergraduate Mathematical Statistics (376) – Fall 2016: undergraduate linear algebra (346), graduate Stochastic Processes I (A77) – Spring 2017: Mathematical statistics, graduate stochastic processes II (B77). Advising departmental honors for student Casey Bolles. – Fall 2017: Undergraduate probability (375) – Spring 2018: Mathematical statistics. Advising departmental honors for student Pulkit Singla. – Fall 2019: graduate Stochastic Processes I; (at CUNY GC) Ph.d.-level Probability I (81600). – Spring 2019: graduate Stochastic Processes II. Advising departmental honors for stu- dent Julia Saccamano.

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