Read the latest on the deaths of notable people. These news stories recount the lives that made them prominent locally, nationally and worldwide.

Cathleen Morawetz, mathematician with real-world impact, dies at 94

Cathleen S. Morawetz, a mathematician whose theorems often found use in solving real-world engineering problems, has died at her home in New York City. She was 94. One of her notable papers helped explain the flow of air around airplanes flying close to the speed of sound.

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