Education:
Ph.D., Graduate School & University Center (CUNY) - 1995 (Mathematics, General)
Areas of Expertise:
Chaos and bifurcations in low-dimensional dynamical systems, conformally natural extensions of circle homeomorphisms, Thurston's earthquake theory on the hyperbolic plane, and real Teichmuller theory motivated by rigidity problems in smooth or conformal dynamical systems.
Books and Publications
Chamanara, Reza, Jun Hu and Joel Zablow. "Extending the Dehn Quandle to Shears and Laminations on Torus." Fundamenta Mathematicae. (Books and Publications: Forthcoming Publications) 2013
Fan, Jinhua and Jun Hu. "Induced Earthquake Measure Map on Asymptotic Teichm¨uller Space." Preprint. (Books and Publications: Forthcoming Publications) 2013
Hu, Jun and Francisco G. Jimenez-Lopez. "Comparison Between the Teichmuller Distance and the Length Spectrum Distance Under Partial Twists." Preprint in polishing. (Books and Publications: Forthcoming Publications) 2013
Hu, Jun and Francisco G. Jimenez.-Lopez. "Modified Length Spectrum Metric on Marked Teichmuller Spaces of Riemann Surfaces With Boundaries." Preprint. (Books and Publications: Forthcoming Publications) 2013
Hu, Jun and Oleg Muzician. "Conformally Natural Extensions of Continuous Circle Maps: II. The General Case." Preprint in polishing. (Books and Publications: Forthcoming Publications) 2013
Hu, Jun and Susovan Pal. "Boundary Differentiability of Douady-Earle Extensions of Circle Diffeomorphisms." Submitted. (Books and Publications: Forthcoming Publications) 2013
"Earthquakes on the Hyperbolic Plane." Handbook of Teichmuller Theory, Vol. III. Ed.
Athanase Papadopoulos. IRMA Lectures in Mathematics and Theoretical Physics Vol. 17 (European Mathematical Society). 71-122. (Books and Publications: Chapter) 2012
Hu, Jun and Oleg Muzician. "Conformally Natural Extensions of Continuous Circle Maps: I. The Case When the Pushforward Measure Has No Atom." Contemporary Mathematics 575: 171-98. (Books and Publications: Peer Reviewed Article) 2012
Hu, Jun and Oleg Muzician. "Cross-Ratio Distortion and Douady-Earle Extension: I. A New Upper Bound on Quasiconformality." Journal of the London Mathematical Society 86.2: 387-406. (Books and Publications: Peer Reviewed Article) 2012
Hu, Jun and Oleg Muzician. "Cross-Ratio Distortion and Douady-Earle Extension: II. Quasiconformality and Asymptotic Conformality Are Local." Journal d'Analyse Mathématique 117.1: 249-71. (Books and Publications: Peer Reviewed Article) 2012
Hu, Jun, Francisco G. Jimenez and Oleg Muzician. "Rational Maps With Half Symmetries, Julia Sets, and Multibrot Sets in Parameter Planes." Contemporary Mathematics 573: 119-46. (Books and Publications: Peer Reviewed Article) 2012
Hu, Jun and Zhe Wang. "Remarks on Chirka's Proof of Slodkowski's Theorem." Advances in Mathematics (China) 40.3: 325-38. (Books and Publications: Peer Reviewed Article) 2011
Hu, Jun, Yunping Jiang and Zhe Wang. "Kobayashi's and Teichmuller's Metrics on the Teichmuller Space of Symmetric Circle Homeomorphisms." Acta Mathematica Sinica, English Series 27.3: 617-24. (Books and Publications: Peer Reviewed Article) 2011
Gardiner, F.P. and Jun Hu. "A Short Course on Teichmuller's Theorem." Teichmuller Theory and Moduli Problems. Ramanujan Mathematical Society Lecture Notes Series 10: 195-228. (Books and Publications: Peer Reviewed Article) 2010
Gardiner, F.P. and Jun Hu. "Finite Earthquakes and the Associahedron." Teichmuller Theory and Moduli Problems. Ramanujan Mathematical Society Lecture Notes Series 10: 179-94. (Books and Publications: Peer Reviewed Article) 2010
"From Left Earthquakes to Right." Contemporary Mathematics 432: 75-92. (Books and Publications: Peer Reviewed Article) 2007
Hu, J. and M. Su. "Thurston Unbounded Earthquake Maps." Annals Academiae Scientarium Fennicae Mathematica 32: 125-39. (Books and Publications: Peer Reviewed Article) 2007
"Norms on Earthquake Measures and Zygmund Functions." Proceedings of the AMS 133: 193-202. (Books and Publications: Peer Reviewed Article) 2005
Gardiner, F.P. and Jun Hu. "An Earthquake Version of the Jackson-Zygmund Theorem." Annals Academiae Scientarium Fennicae Mathematica 30: 237-60. (Books and Publications: Peer Reviewed Article) 2005
"Continuous Extensions Are Not Holder." International Journal of Bifurcation and Chaos 14.4: 1501-05. (Books and Publications: Peer Reviewed Article) 2004
"Earthquake Measure and Cross-Ratio Distortion." Contemporary Mathematics 355: 285-308. (Books and Publications: Peer Reviewed Article) 2004
"On a Norm of Tangent Vectors to Earthquake Curves." Advances in Mathematics 33.4: 401-1 (China). (Books and Publications: Peer Reviewed Article) 2004
Awards, Honors and Fellowships
PSC-CUNY Research Award 43, 2012-13. (Awards and Honors) 2012
PSC-CUNY Research Award 41, 2010-11. (Grants and Fellowships) 2011
CUNY Central Office of Academic Affairs Grant, for "Improving Undergraduate Mathematics Learning," Sandra Kingan (principal investigator) and Jun Hu and Anthony E. Clement (co-principal investigators), 2010-12. (Grants and Fellowships) 2010
PSC-CUNY Research Award 40, 2009-10. (Grants and Fellowships) 2010
PSC-CUNY Research Award 39, 2008-09. (Grants and Fellowships) 2009
PSC-CUNY Research Award 38, 2007-08. (Grants and Fellowships) 2008
PSC-CUNY Research Award 37, 2006-07. (Grants and Fellowships) 2007
PSC-CUNY Research Award 36, 2005-06. (Grants and Fellowships) 2006
PSC-CUNY Research Award 35, 2004-05. (Grants and Fellowships) 2005
CUNY Collaborative Research Grant. Jun Hu and Yunping Jiang, co-principal investigators. 2004-08. (Grants and Fellowships) 2004
PSC-CUNY Research Award 34, 2003-04. (Grants and Fellowships) 2004
PSC-CUNY Research Award 33, 2002-03. (Grants and Fellowships) 2003
PSC-CUNY Research Award 32, 2001-02. (Grants and Fellowships) 2002
PSC-CUNY Research Award 31, 2000-01. (Grants and Fellowships) 2001
PSC-CUNY Research Award 30, 1999-2000. (Grants and Fellowships) 2000
NSF Postdoctoral Research Fellowship, 1998-2002. (Grants and Fellowships) 1998
Research Activities
Hu, Jun, Reza Chamanara and Nik Lakic, co-organizers, two-day international conference in Teichmuller theory and related topics. Supported by the Mathematics departments of Brooklyn College and the CUNY Graduate Center. CUNY Graduate Center. New York, March 20-21. http://usehome.brooklyn.edu/rchamanara/Fred. 2009
Hu, Jun and Saeed Zakeri, organizers, Complex Analysis and Dynamics Seminar, CUNY Graduate Center, Fall 2005-present. http://qcpages.qc.cuny.edu/~zakeri/seminar.html. 2005
Other Professional Activities
Co-organizer, Conference on Conformal Dynamics and Hyperbolic Geometry, which celebrates the contributions of Linda Keen. Supported by NSF, CUNY Graduate Center and Lehman College (CUNY). CUNY Graduate Center, Oct. 21-23. http://userhome.brooklyn.cuny.edu/rchamanara/Linda/index.htm. 2010
Co-organizer, Student Learning Seminar in Complex Analysis, CUNY Graduate Center, Fall. 2007