Gabriel Peyré on Twitter: "Oldies but goldies: Herbert Federer, Curvature measures, 1959. The co-area formula expresses the Total Variation semi-norm as the total perimeters of levelsets. Enables the computation of TV for
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Roger Federer vs PH Herbert, Halle Open 2019 Semi-Final Live Streaming & Match Time in IST: Get Free Telecast & TV Channel Details of Fourth Round Tennis Match in India | 🎾 LatestLY
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