Western Math Calendar

Mathematics Calendar

October 2023

Sunday	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday
1	2	3	4 Transformation Groups Seminar 10:30 Tao Gong (Western) Introduction to root systems and Weyl groups Transformation Groups Seminar Speaker: Tao Gong (Western) "Introduction to root systems and Weyl groups" Time: 10:30 Room: MC 108 In a Euclidean space, a (crystallographic) root system is special set of nonzero vectors, called roots. Each root determines a reflection in the Euclidean space, and these reflections generate a finite group, called the Weyl group. I will show some interesting facts about root systems and Weyl groups. In particular, I will talk about classification of root systems, and group actions of (extended) Weyl groups on the Euclidean space. Geometry and Topology 15:30 Yvon Verberne (Western) TBA Geometry and Topology Speaker: Yvon Verberne (Western) "TBA" Time: 15:30 Room: MC 107 Pizza Seminar 17:30 Olga Trichtchenko (Western) Solitons and Machine Learning: Capturing Nonlinear Waves with Physics-Informed Neural Networks Pizza Seminar Speaker: Olga Trichtchenko (Western) "Solitons and Machine Learning: Capturing Nonlinear Waves with Physics-Informed Neural Networks" Time: 17:30 Room: MC 108 > Solitons (or solitary waves) are waves that travel at a constant speed while maintaining their shape, due to the perfect balance of nonlinear and dispersive effects. These were first described in 1834 by J.S. Russell as he travelled on horseback beside a canal, pursuing a wave for almost two miles. However, solitons are more ubiquitous in nature from rogue waves that can overturn boats, to being responsible for transmitting signals in the brain. They are well studied in different models like the Korteweg-de Vries equation first introduced in 1877 using various methods such as inverse scattering. On the other hand machine learning techniques, in particular physics informed neural networks (PINNs) are much newer methods, only formally introduced in the last few years. They rely on the governing physical laws and employ modern optimisation techniques to find solutions to the underlying equations. In this talk, we discuss the preliminary work bridging the two fields together. We examine how well machine learning methods can capture solitons as well as their nonlinear interactions and where the new methods may come up short.	5 Ph.D. Presentation 15:30 Sinan Nurlu (Western) TBA Ph.D. Presentation Speaker: Sinan Nurlu (Western) "TBA" Time: 15:30 Room: MC 107 Ph.D. Presentation 16:00 Priya Bucha Jain (Western) TBA Ph.D. Presentation Speaker: Priya Bucha Jain (Western) "TBA" Time: 16:00 Room: MC 107 Ph.D. Presentation 16:30 Siyuan Deng (Western) TBA Ph.D. Presentation Speaker: Siyuan Deng (Western) "TBA" Time: 16:30 Room: MC 108	6	7
8	9	10	11 Geometry and Topology 15:30 Michael Francis (Western) TBA Geometry and Topology Speaker: Michael Francis (Western) "TBA" Time: 15:30 Room: MC 107	12 Colloquium 15:30 Michael Albanese (Waterloo) TBA Colloquium Speaker: Michael Albanese (Waterloo) "TBA" Time: 15:30 Room: MC 108	13	14
15	16	17	18 Geometry and Topology 15:30 Udit Mavinkurve (Western) TBA Geometry and Topology Speaker: Udit Mavinkurve (Western) "TBA" Time: 15:30 Room: MC 107	19	20 Algebra Seminar 14:30 Hyun Jong Kim (University of Wisconsin) TBD Algebra Seminar Speaker: Hyun Jong Kim (University of Wisconsin) "TBD" Time: 14:30 Room: MC 108	21
22	23	24	25 Geometry and Topology 15:30 Abdul Zalloum (University of Toronto) TBA Geometry and Topology Speaker: Abdul Zalloum (University of Toronto) "TBA" Time: 15:30 Room: MC 107	26 Department Meeting 15:30 (Western) Department Meeting Department Meeting Speaker: (Western) "Department Meeting" Time: 15:30 Room: MC 108	27 Colloquium 15:30 Alexandre Odesskii (Brock) TBA Colloquium Speaker: Alexandre Odesskii (Brock) "TBA" Time: 15:30 Room: MC 108	28
29	30	31	1	2	3	4