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Mathematics

1 month agoopenalexMathematics

The Contacts That Break Epidemic Models Are the Ones Nobody Can Measure

Pandemic forecasts lean on a reassuring simplification — that we know how people mix. A new study shows where that simplification falls apart, and how badly.
1 month agoarXivMathematics

Quantum States Don't Fill Space — They Draw a Curve

Physicists tune quantum systems through families of matrices every day without asking what shape the possible states trace out. Mathematicians just answered it.