+++ title = "Pernicious numbers" description = "" date = 2019-09-10T18:35:58Z aliases = [] [extra] id = 17363 task = """ A pernicious number is a positive integer ...

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Perhaps the most enduring idea from the early days of AI is that of a declarative system reasoning over explicitly represented knowledge with a general inference engine. Such systems require a formal ...

Photos, left to right: After school program in Honduras, courtesy of Honduran Youth Alliance/Alianza Joven Honduras; U.S. Border Patrol Agent training Guatemalan Police, by Miguel Negronvia ...

Hodge theory connects the geometry of algebraic varieties to their topological properties via the Hodge decomposition and Hodge diamond. It has been central to developments in mirror symmetry, ...