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Tag Archives: Schroeder numbers
A mathematical promenade
I haven’t posted for a while; I have been in China where the firewall allows me to read WordPress but not to post. Normal service now resumed (hopefully). Given four real polynomials, all of which vanish at the origin, suppose … Continue reading
Posted in books, exposition
Tagged Hipparchus, permutation patterns, real algebraic curves, Schroeder numbers
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Peter Cameron's Blog 