Seminar
Monday, September 21, 2009, 4:30pm, 119 Physics
Richard Durrett (Cornell Univeristy)
Life and Death on a Random Graph
Abstract:- At the turn of this century it was realized that social and communication
networks
were best modeled by graphs that were "small worlds" and/or had power law
degree
distributions. I will discuss two examples. The first is a situation
where physicist's
mean field arguments give the wrong answer about the spread of epidemic.
The second,
inspired by a gypsy moth outbreak in the late 1980s in NY leads to
chaotic behavior. I will
concentrate on what is true rather than why, so the talk should be
accessible to a wide audience. [video]
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