Frank Morgan, Atwell Professor of Mathematics, Emeritus, Williams College.
Resumen: The familiar double soap bubble that forms when two soap bubbles come together is the least-surface-area way to enclose and separate the two given volumes of air, as we proved in 2000. There has been a surge of interest of spaces with density since their appearance in Perelman's 2006 proof of the Poincaré Conjecture. We'll discuss the double bubble problem in spaces with density, including open problems and recent results, some by undergraduates.
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