Our first Board Game Night of the year will be this Friday!

**Time:** 9-12 PM, Friday, September 18, 2015

**Place:** Fine Common Room

Come hang out and enjoy a leisurely night playing board games and eating delicious snacks. There will be pizza!

]]>We are also looking for advertisers! More information can be found here:

http://www.pumj.org/advertising

Principia announcement on webpage of Princeton’s Office of Undergraduate Research:

https://undergraduateresearch.princeton.edu/news/principia-now-accepting-submissions-spring-issue

]]>Where: Fine common room

When: Friday 5/9, 3:30pm (a.k.a. tea time!)

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Princeton University Press gave us a bunch of new books! They’re on the shelf in Fine Hall Common Room. Feel free to check them out! Please keep them in the Common Room though!

]]>The title of the talk will be “Conic spherical metrics”. Here is the abstract:

I will discuss the problem of constructing spherical structures on 2-sphere with prescribed conic angles and its connection to geometric stability. In the end, I will briefly discuss higher dimensional analogue of this problem.

Hope to see you there!

]]>Deterministic chaos is a property of deterministic dynamics. I shall explain main properties of chaotic dynamics and give some example of chaotic dynamical systems.

Prof. Sinai is known for his work in dynamic systems. As many of you may have heard, he received the Abel Prize, which is often described as the mathematician’s Nobel Prize, not long ago. Check out his wikipedia page if you are interested!http://en.wikipedia.org/wiki/Yakov_Sinai

]]>Where: **Fine 214**

What:

Abstract:

Where: Fine 214

Who: Prof. Adam Levine, who specializes in low-dimensional topology (and he only joined Princeton this academic year!) You can check out some details here:https://www.math.princeton.edu/news/home-page/mathematics-department-welcomes-new-faculty

What:

Title: Knot Concordance

Abstract: Concordance is the study of which knots in three-dimensional space can be realized as the boundaries of embedded disks in four dimensions, a question that was first introduced by Princeton’s Ralph Fox and John Milnor in the 1950s. This question is closely tied to many of the strange features of four-dimensional topology and is the subject of much current research. I’ll provide an overview of this subject and an introduction to some of the modern tools that have led to breakthroughs in our understanding.