Applying for Math Jobs Workshop

Speaker: 

Dennis Eichhorn

Institution: 

UC Irvine

Time: 

Wednesday, May 31, 2017 - 2:00pm to 3:00pm

Location: 

RH 440R

Getting your PhD in 2018?  There are things you should be doing NOW to plan for your career. In this workshop, we will talk about every aspect of the successful academic job search.  This will include

1.  Writing a CV, Teaching statement, Research statement, and cover letter
2.  Choosing and cultivating letter writers
3.  Finding job listings
4.  Interviewing and negotiating job offers
5.  Meeting those early deadlines (and what you need to do by mid-August)

The focus will be on the search for academic jobs, but some resources regarding the non-academic job search may also be mentioned.

All are welcome, including post-docs and students that are still more than one year away from finishing.  If you plan to take the job search seriously, there are plenty of things to start thinking about NOW that will make you a better job candidate when you finish!

An embedding theorem: differential geometry behind massive data analysis

Speaker: 

Chen-Yun Lin

Institution: 

University of Toronto

Time: 

Tuesday, May 23, 2017 - 3:00pm to 4:00pm

Location: 

RH 306

High-dimensional data can be difficult to analyze. Assume data are distributed on a low-dimensional manifold. The Vector Diffusion Mapping (VDM), introduced by Singer-Wu, is a non-linear dimension reduction technique and is shown robust to noise. It has applications in cryo-electron microscopy and image denoising and has potential application in time-frequency analysis.

 
In this talk, I will present a theoretical analysis of the effectiveness of the VDM. Specifically, I will discuss parametrisation of the manifold and an embedding which is equivalent to the truncated VDM. In the differential geometry language, I use eigen-vector fields of the connection Laplacian operator to construct local coordinate charts that depend only on geometric properties of the manifold. Next, I use the coordinate charts to embed the entire manifold into a finite-dimensional Euclidean space. The proof of the results relies on solving the elliptic system and provide estimates for eigenvector fields and the heat kernel and their gradients.

Two topics: remarks on homomorphic encryption schemes of Smart-Vercauteren and Gentry-Halevi; a subfield lattice attack on overstretched NTRU assumption

Speaker: 

Alice Silverberg and Shahed Sharif

Institution: 

UCI & CSUSM

Time: 

Tuesday, May 30, 2017 - 2:00pm

Host: 

Alice Silverberg

Location: 

RH 340P

A.S. will give some remarks (joint work with Hendrik Lenstra) on homomorphic encryption schemes of Smart-Vercauteren and Gentry-Halevi.

S.S. will discuss the paper "A subfield lattice attack on overstretched NTRU assumptions: Cryptanalysis of some FHE and Graded Encoding Schemes" by Martin Albrecht, Shi Bai, Léo Ducas, which is available at: https://eprint.iacr.org/2016/127.pdf

Pages

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