Steve Butler casually tosses a ball from his left hand to his right to demonstrate his point that anyone can juggle. With just one ball it's easy, until he changes it up and adds a second and a third ...

A professor of mathematics casually tosses a ball from his left hand to his right to demonstrate his point that anyone can juggle. He says the secret to juggling is simple – it’s all about patterns.

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Juggling is math. Follow me on this one. The connection between the two came out of juggler's attempts to develop a kind of notation for their tricks. That notation, called siteswap, can be used to ...

Abstract: The "positroid stratification" of the Grassmannian of k-planes in n-space, studied by Lusztig, Postnikov, and many others, stands in between the (beautiful) Bruhat decomposition and the ...