# Full Seminar Archive

Our regular seminar program covers a broad range of topics from applied mathematics, pure mathematics and statistics. All staff and students are welcome.
This page has a complete list of past seminars and a list restricted by year can be accessed via the left-hand menu.

*Wenbo Wu & Jörn Callies - Division of Geological and Planetary Sciences, California Institute of Technology*

More than 90% of the energy trapped on Earth by increasingly abundant greenhouse gases is absorbed by the ocean. Monitoring the resulting ocean warming remains a challenging sampling problem.
To...

*Craig H. Bishop - School of Earth Sciences and ARC Centre of Excellence for Climate Extremes, University of Melbourne*

Current state estimation or data assimilation techniques assume Gaussian uncertainties for both forecasts and observations. However, unbiased observations of bounded variables can be shown to have...

*Sean Gasiorek - University of Sydney*

We give a review of Euclidean and pseudo-Euclidean billiards in the plane and in d-dimensional space. If the billiard table is bounded by confocal quadrics, periodic trajectories can be expressed in...

*Matthew Tam - University of Melbourne*

Generative adversarial networks (GANs) are an approach to fitting generative models over complex structured spaces. Within this framework, the fitting problem is posed as a zero-sum game between two...

*Lindon Roberts - Australian National University*

Least-squares problems (such as parameter estimation) are ubiquitous across quantitative disciplines. Optimisation algorithms for solving such problems are numerous and well-established. However, in...

*Ian Lizarraga - University of Sydney*

Recent work on multiple-timescale dynamical systems has overwhelmingly focused on models where there is a global identification of “slow” versus “fast” variables throughout the phase space. But in...

*Emeritus Professor Colin Rogers - UNSW*

The combined action of reciprocal and integral-type transformations is here used to sequentially reduce to canonical form a class of nonlinear moving boundary problems involving heterogeneity....

*Ilknur Tulunay - UNSW School of Maths and Stats*

ST-metric, arising from relative entropy can be thought as the distance between two discrete curves in the unit interval. Any data set can also be viewed as a discrete curve and can be transformed...

*Abhishek Bhardwaj - ANU*

Non-negative polynomials are fundamental objects of study in real algebraic geometry. Testing the non-negativity of polynomials is known to be NP hard. Because of this, one generally looks to...

*Benoît Pasquier - Department of Earth System Science of the University of California*

Steady-state systems of nonlinear partial differential equations (PDEs) are common in engineering and the biogeosciences. These systems are typically controlled by parameters that can be estimated...