  | 
            
            
               
                  | 
                 
                  Undergraduate Network Meeting 
                    September 25, 2010 
                    at the Fields Institute  
                  
                  Organizers: 
                    Richard Cerezo, (mu(at)math.toronto.edu) and Sergio Da Silva, 
                    (sergio.dasilva(at)utoronto.ca) 
                    Faculty Advisor: Matthias Neufang. 
                   
                 | 
               
             
              
            
            Undergraduate Network includes a series of mathematical talks aimed 
              at undergraduates, and organized into a network involving the local 
              universities. 
              We will be stating with trial run of four events for next year with 
              faculty members as consultants. 
             
            Schedule:
            10:00 a.m. Introduction: Matthias Neufang, Fields Institute 
            Lecture:  Eli Glasner, Tel Aviv Universit   
            How to define chaos?
            
            10:45 a.m.Break
             
            11:15 a.m.  Eric Sawyer, McMaster University
             The corona problem, the Monge-Ampere equation and two weight inequalities 
            for the Hilbert transform. 
            
            12:00 p.m. Break
             
            1:00 p.m. Vladimir Pestov, University of Ottawa
             Ultralimits, Ultraproducts, and Some Open Problems About Groups 
            
            
            1:45 p.m.Break
             
            2:15 p.m.  Ed Barbeau, University of Toronto
             Analysis as a Process 
            
            3:00 p.m. Panel Discussion
             Abstracts 
            Eli Glasner, Tel Aviv University 
              How to define chaos? 
              The great popularity of the notion of Chaos attracted many mathematicians 
              to this subject. As a consequence we have today many different interpretations 
              of what a chaotic behaviour should mean. I will discuss briefly 
              several definitions of Chaos in the theory of Dynamical Systems 
              and try to demonstrate, with a few simple examples, how they relate 
              to each other. 
            Eric Sawyer, McMaster University 
              The corona problem, the Monge-Ampere equation and two weight 
              inequalities for the Hilbert transform. 
              We discuss three open problems each with a long history - what has 
              been done with them, what might be done in the near future, and 
              some connections between them. 
              Reference: http://www.math.mcmaster.ca/~sawyer/Publications/description.pdf 
            Vladimir Pestov, University of Ottawa 
              Ultralimits, Ultraproducts, and Some Open Problems About Groups 
               
              The mapping assigning to each convergent bounded sequence its limit 
              has certain natural properties well-known since high school: it 
              is linear, multiplicative (the limit of the product is the product 
              of limits), sends a constant sequence to the corresponding constant 
              value, the limit of a positive sequence is positive, etc. What if 
              one tries to define an assignment of a number, having similar properties, 
              to every bounded sequence (not necessarily a convergent one)? This 
              way, one naturally arrives at the concept of an ultrafilter and 
              ultralimit, and with a little bit more effort, of an ultraproduct 
              of metric structures. We will discuss this construction, as well 
              the role played by it, particularly in group theory, and offer some 
              presently open questions about groups that can be stated in this 
              language. 
              References: http://arxiv.org/abs/0911.4266, 
              http://www.math.ucla.edu/~asl/bsl/1404/1404-001.ps 
            Ed Barbeau, University of Toronto 
              Final Thoughts: Analysis as a Process 
              Basically, analysis is the process of taking apart some representation 
              of a situation, and taking it apart to understand how it works. 
              This necessitates a degree of abstraction and the creation of a 
              language to express and manipulate abstract concepts. As mathematics 
              develops and patterns emerge, it becomes desirable to formulate 
              abstract structures and these in turn allow for the cross-fertilization 
              of different areas of mathematics. I will look at a couple of examples. 
            List of Participants
            
               
                | Full Name | 
                University/Affiliation | 
               
               
                | Ban, Frank | 
                University of Waterloo | 
               
               
                | Barbeau, Edward | 
                University of Toronto | 
               
               
                | Barfuss, Peter | 
                University of Waterloo | 
               
               
                | Bathurst, Scott | 
                Prism Valuation | 
               
               
                | Bin, Wu | 
                University of Waterloo | 
               
               
                | Cerezo, Richard | 
                University of Toronto | 
               
               
                | Chan, Yuk Fung | 
                University of Toronto | 
               
               
                | Charlesworth, Ian | 
                University of Waterloo | 
               
               
                | Chen, Si Yu | 
                University of Toronto | 
               
               
                | Chow, Kevin | 
                University of Waterloo | 
               
               
                | Chung, Ha Yoon | 
                University of Toronto | 
               
               
                | Cousins, Greg | 
                McMaster University | 
               
               
                | Cui, Qitan | 
                University of Toronto | 
               
               
                | da Silva, Segio | 
                University of Toronto | 
               
               
                | Dawson, Sean | 
                University of Toronto | 
               
               
                | Deng, Wei | 
                McMaster University | 
               
               
                | Dranovski, Anne | 
                University of Toronto | 
               
               
                | Ginsberg, Dan | 
                University of Toronto | 
               
               
                | Glasner, Eli | 
                Tel Aviv University | 
               
               
                | Gold, Nathan | 
                York University | 
               
               
                | Grajo, Ramon | 
                University of Toronto | 
               
               
                | Guilbault, Chris | 
                University of Toronto | 
               
               
                | Han, Changho | 
                University of Toronto | 
               
               
                | Hurst, Michelle | 
                McMaster University | 
               
               
                | Ji, Jia | 
                University of Toronto | 
               
               
                | Jung, Andrew | 
                University of Waterloo | 
               
               
                | Kabir, Ifaz | 
                University of Waterloo | 
               
               
                | Kim, Dy | 
                  | 
               
               
                | Kim, Joo Ho | 
                University of Toronto | 
               
               
                | Kohar, Richard | 
                McMaster University | 
               
               
                | Lee, Seung-Jae | 
                University of Toronto | 
               
               
                | Lee, Yohan | 
                McMaster University | 
               
               
                | Levin, Kirill | 
                University of Toronto | 
               
               
                | Li, Fangda | 
                University of Toronto | 
               
               
                | McDonald, Daniel | 
                University of Toronto | 
               
               
                | Milcak, Juraj | 
                University of Toronto | 
               
               
                | Mohsin, Faizan Khalid | 
                University of Toronto | 
               
               
                | Moon, SeokHwan | 
                University of Toronto | 
               
               
                | Mountford, Carrie | 
                University of Guelph | 
               
               
                | Neufang, Matthias | 
                Carleton University, Fields Institute | 
               
               
                | Neymanov, Tural | 
                University of Toronto | 
               
               
                | Park, Daniel | 
                University of Toronto | 
               
               
                | Park, Sang Hee | 
                University of Toronto | 
               
               
                | Pestov, Vladimir | 
                University of Ottawa | 
               
               
                | Rush, Stephen | 
                University of Guelph | 
               
               
                | Sawyer, Eric | 
                McMaster University | 
               
               
                | Seaton, Joshua | 
                University of Toronto | 
               
               
                | Song, Gary | 
                University of Waterloo | 
               
               
                | Sourisseau, Matt | 
                University of Toronto | 
               
               
                | Sun, Sarah | 
                University of Waterloo | 
               
               
                | Tan, Jan Kevin | 
                University of Toronto | 
               
               
                | Teng, Chieh | 
                University of Toronto | 
               
               
                | Tour, Dennis | 
                McMaster University | 
               
               
                | Walton, Laura | 
                McMaster University | 
               
               
                | Wang, Shirley | 
                University of Toronto | 
               
               
                | Wang, Tuo | 
                Polytechnic Institute of NYU | 
               
               
                | Wesolowski, Michael | 
                University of Waterloo | 
               
               
                | Yakubovich, Alexander | 
                McMaster University | 
               
               
                | Yang, John | 
                  | 
               
               
                | Zhu, Ren | 
                University of Waterloo | 
               
             
             
              Back to top  
            
              
 | 
  |