Monday March 19, 2018 1:00 PM  2:30 PM Math Tower P131
 Grad / Postdoc Professional Development Seminar Chris Bishop and Raanan Schul, Stony Brook University
Q&A with Chris Bishop and Raanan SchulChris and Raanan are going to share some advice on the job market, journal publications, research, postdoc jobs, etc. from the point of view of someone working in analysis. (Pizza will be served.)

Wednesday March 21, 2018 4:00 PM  5:30 PM Math Tower P131
 Algebraic geometry seminar Cristian Minoccheri, Stony Brook University
1Cycles on Fano varietiesThe geometry of Fano varieties is strongly related to the geometry of low degree rational curves on them. I will discuss one aspect of this relation: for a Fano variety X over \mathbb{C}, the more positive the graded pieces of the Chern character of X are, the simpler the relations among 1cycles should be. Many examples arise as complete intersections in usual or weighted projective space, where the positivity condition corresponds to the degrees of the defining polynomials being low. In particular, I will discuss new cases of triviality of the first Griffiths group and of the first Chow group being especially simple. (This is joint work with Xuanyu Pan.)

Wednesday March 21, 2018 1:00 PM  2:00 PM Math Tower P131
 Graduate Student Seminar Jiahao Hu, Stony Brook University
TBATBA

Friday March 23, 2018 2:30 PM  3:30 PM Math Tower P131
 Dynamical Systems Seminar Juan RiveraLetelier, University of Rochester
TBATBA

Tuesday March 27, 2018 4:00 PM  5:00 PM Math Tower S240
 Simons Lectures Series Martin Hairer, Warwick
Bridging scales

Tuesday March 27, 2018 4:00 PM  5:30 PM Math Tower P131
 Geometry/Topology Seminar Martin Hairer, Warwick
Simons LectureSimons Lecture Series. (No Geometry/Topology seminar this week.)

Wednesday March 28, 2018 4:00 PM  5:00 PM Math Tower S240
 Simons Lectures Series Martin Hairer, Warwick
An analysts incursion into perturbative quantum field theory

Thursday March 29, 2018 2:30 PM P131
 Analysis Seminar Silvia Ghinassi, Stony Brook University
Sufficient conditions for $C^{1,α}$ rectifiabilityWe provide sufficient conditions for a set or measure in $\mathbb{R}^n$ to be $C^{1,α}$ $d$rectifiable, with $α ∈ [0,1]$. The conditions use a BishopJones type square function and all statements are quantitative in that the $C^{1,α}$ constants depend on such a function. Key tools for the proof come from Guy David and Tatiana Toro's parametrization of Reifenberg flat sets (with holes) in the Hölder and Lipschitz categories.

Thursday March 29, 2018 4:00 PM  5:00 PM Math Tower S240
 Simons Lectures Series Martin Hairer, Warwick
Renormalization: a BPHZ theorem for stochastic PDEs

Thursday April 05, 2018 4:00 PM  5:00 PM SCGP Auditorium 103
 Colloquium John Milnor, Stony Brook University
Points on a Circle: from Pappus to ThurstonA soft introduction to the easiest examples of DeligneMumford compactifications.

Thursday April 12, 2018 4:00 PM  5:00 PM SCGP102
 Colloquium TBA, TBA
Categorification in mathematical physics workshop ColloquiumTBA

Friday April 13, 2018 2:30 PM  3:30 PM Math Tower P131
 Dynamical Systems Seminar Anand P. Singh, Central University of Rajasthan
TBATBA

Tuesday April 17, 2018 4:00 PM  5:30 PM Math Tower P131
 Geometry/Topology Seminar John Alex Cruz Morales, Universidad Nacional. Colombia, South America
Quantum cohomology of Grassmannians and Lefschetz exceptional collections.

Thursday April 19, 2018 4:00 PM  5:00 PM Math Tower P131
 Colloquium Percy Deift, NYU Courant
Universality in numerical computation with random data.
Case studies and analytical results.The speaker will discuss various universality aspects of numerical computations using standard algorithms.
These aspects include empirical observations, rigorous results, and some speculations about computation in a broader sense.
Joint with C.Pfrang, G.Menon, S.Olver and Thomas Trogdon.

Friday April 20, 2018 11:00 PM P131
 Analysis Seminar Evita Nestoridi, Princeton University
TBATBA

Thursday April 26, 2018 4:00 PM  5:00 PM Math Tower P131
 Colloquium Mohammed Abouzaid, Columbia University
TBATBA

Friday April 27, 2018 2:30 PM  3:30 PM Math Tower P131
 Dynamical Systems Seminar Romain Dujardin, Université Pierre et Marie Curie
TBATBA

Tuesday May 01, 2018 5:30 PM  6:30 PM Math Tower 5127
 First and Second Year Student Seminar Ljudmila Kamenova, Stony Brook University
Hyperkaehler GeometryCompact complex manifolds with vanishing first Chern class are built of irreducible blocks that are complex tori, CalabiYau manifolds and hyperkaehler manifolds. Hyperkaehler manifolds are simply connected and admit a nondegenerate holomorphic 2form. Some basic problems in this area include coming up with more examples, classifying hyperkaehler manifolds in low dimensions and proving finiteness of their deformation types. For example, the only complex hyperkaehler surfaces are K3 surfaces, and they are all deformation equivalent to each other. Hyperkaehler geometry is still a relatively young field that started in the early 80's, and there are a lot of interesting directions and open problems. In this talk I will talk about several directions in hyperkaehler geometry.

