Dynamics and Analysis Student Seminar

Organized by Yunping Jiang (yunping.jiang@qc.cuny.edu)

Department of Mathematics, CUNY Graduate Center

Fall of 2014 Schedule:

Wednesdays and some Fridays, 10:30am-12:00noon (Math Thesis Room, Rm. 4214-03):

Read book ``Quadratic Differentials’’ by Strebel.

 

February 4, Organization and Nishan Chaterjee, 1.1-1.4

February 11, Yunping Jiang, Riemann surfaces and Mobius groups (based on Farkas and Kra’s book Riemann surfaces, \S0.1, I.1, and IV.6)

February 18, (Monday Schedule) Nishan Chaterjee, 2.1-2.3

February 25, Alice Kwon, 2.4-2.6

March 4, Nishan Chaterjee, 3.1-3.2

March 11, Nishan Chaterjee, 3.3

March 18, Alice Kwon, 3.4

March 25, Alice Kwon, 3.5-3.6

April 1, Santanu Nandi 4.1-4.4

April 8, Spring Recess

April 15, Santanu Nandi 4.5-5.2

 

Joint with the workshop of identities in New York (Please see room for each talk)

April 21 (Tuesday)

         15:40-16:30 (Room 4102): Ser Peow Tan (National Univ. of Singapore)
         17:00-17:50 (
Room 4102): Martin Bridgeman (Boston College)
         19:00: Conference Dinner at the Persian Grill

 

April 22, 10:30-11:20 (Room 4102): Feng Luo (Rutgers University)

                                     Title: Discrete uniformization theorem for polyhedral surfaces
                                    Abstract: The classical uniformization theorem states that

                                                    every Riemann surface carries a complete

                                                    constant curvature Riemannian metric in its

                                                    conformal class. However, it is difficult to

                                                    implement the uniformization theorem for

                                                    polyhedral surfaces. We introduce a notion of

                                                    discrete conformality for polyhedral surfaces

                                                    and prove a discrete version of the uniformization

                                                    theorem. This is a joint work with David Gu,

                                                   Jian Sun and Tianqi Wu.

            11:50 - 12:40 (Room 4102): Greg McShane (Institut Fourier Grenoble)

            1:50-3:10 (Math Thesis room, 4214-03): Linda Keen (CUNY Graduate Center),       

                                                   Title: Dynamics on tangent family II

            3:30-4:55 (Math Thesis room, 4214-03): Moira Chas (Stony Brook University)

                                Title: Computer driven theorem and questions in geometry I

                                Abstract: Consider an orientable surface $S$ with negative

                                                Euler characteristic, a minimal set of generators of

                                                the fundamental group of $S$, and a constant curvature

                                                $-1$ metric on $S$.  Each unbased homotopy class

                                                $C$ of closed oriented curves on $S$ determines

                                                three numbers: the word length (that is, the minimal

                                                number of letters needed to express $C$ as a cyclic

                                                word in the generators and their inverses),

                                                the minimal geometric self-intersection number,

                                               and finally the geometric length. These three numbers

                                               can be explicitly computed (or approximated) using

                                               a computer.  We will discuss relations between

                                               these numbers and their statistical structure

                                               as length becomes large.

April 24 (Friday), Santanu Nandi 5.3-5.5

 

April 29, John Adamski, 6.1-6.4

May 1 (Friday), John Adamski, 7.1-7.4

May 6, Marten Fels, 9.1-9.3

May 8 (Friday) No Event (Stony Brook Meeting)

May 13, Marten Fels, 9.4-9.6

May 15 (Friday), Marten Fels, 10.1-10.3

 

Fall of 2014 Schedule

Spring of 2014 Schedule

Fall of 2013 Schedule

Spring of 2013 Schedule

Fall of 2012 Scehdule

Spring of 2012 Schedule

Fall of 2011 Schedule

Spring of 2011 Schedule

Fall of 2010 Schedules

Spring of 2010 Schedule

Fall of 2009 Schedule

Spring of 2009 Schedule