# Mathematics

## Cloaking and Transformation Optics

## Conformal Invariance and Universality in the 2D Ising Model

## Lagrangian Floer Homology and Mirror Symmetry

- Definition of filtered A infinity algebra associated to a Lagrangian submanifold and its categorification.
- Its family version and how it is related to mirror symmetry.
- Some example including toric manifold. Calculation in that case and how mirror symmetry is observed from calculation.

## Linearity in the Tropics

Tropical varieties may be simpler than algebraic varieties, but they are by no means well understood. In fact, tropical linear spaces already feature a surprisingly rich and beautiful combinatorial structure, and interesting connections to geometry, topology, and phylogenetics. I will discuss what we currently know about them.

## Categorical Crepant Resolutions of Higher Dimensional Simple Singularities

## Geometry and analysis of low dimensional manifolds

## On Fourth Order PDEs Modelling Electrostatic Micro-Electronical Systems

Micro-ElectroMechanical Systems (MEMS) and Nano-ElectroMechanical Systems (NEMS) are now a well established sector of contemporary technology. A key component of such systems is the simple idealized electrostatic device consisting of a thin and deformable plate that is held fixed along its boundary , where is a bounded domain in The plate, which lies below another parallel rigid grounded plate (say at level ) has its upper surface coated with a negligibly thin metallic conducting film, in such a way that if a voltage l is applied to the conducting film, it deflects towards the top plate, and if the applied voltage is increased beyond a certain critical value , it then proceeds to touch the grounded plate. The steady-state is then lost, and we have a snap-through at a finite time creating the so-called pull-in instability. A proposed model for the deflection is given by the evolution equation

Now unlike the model involving only the second order Laplacian (i.e., ), very little is known about this equation. We shall explain how, besides the above practical considerations, the model is an extremely rich source of interesting mathematical phenomena.

## PIMS/UBC Math Department Grad Student/Postdoc Job Forum

## Math Mania

## PIMS Board Meeting - Fall 2011

The PIMS 2011 Fall board meeting was held at the University of Saskatchewan. In addition to the board meeting, board members toured the Canadian Light Source facility.