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Found 4,426 Documents (Results 1–100)

High curvature means low-rank: On the sectional curvature of Grassmann and Stiefel manifolds and the underlying matrix trace inequalities. arXiv:2403.01879

Preprint, arXiv:2403.01879 [math.NA] (2024).
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Diffeomorphisms of discs. (English) Zbl 07822638

Beliaev, Dmitry (ed.) et al., International congress of mathematicians 2022, ICM 2022, Helsinki, Finland, virtual, July 6–14, 2022. Volume 4. Sections 5–8. Berlin: European Mathematical Society (EMS). 2856-2878 (2023).
MSC:  57S05 55R40 58D10
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A scalar-valued Fourier transform for the Heisenberg group. (English) Zbl 07820669

Ruiz, Patricia Alonso (ed.) et al., From classical analysis to analysis on fractals. A tribute to Robert Strichartz. Volume 1. Cham: Birkhäuser. Appl. Numer. Harmon. Anal., 137-163 (2023).
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On the uniform convergence of spherical partial sums of Fourier series by the double Walsh system. (English. Russian original) Zbl 07819934

J. Contemp. Math. Anal., Armen. Acad. Sci. 58, No. 5, 370-383 (2023); translation from Izv. Nats. Akad. Nauk Armen., Mat. 58, No. 5, 85-101 (2023).
MSC:  42C10 42A20 43A15
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