| Spring, 2026: Probability Theory, 2026, Panoramas: Jan 8, Jan 13, Jan 19, Jan 22, Feb 8, Feb 18, Feb 24. Block Jacobi Matrices, Barycentric limits and Manifolds [ArXiv]. Remarks on Connection and Dirac matrices [ArXiv]. Sad news about Dick Gross.
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| Fall, 2025: Upper level coordination, F-2025 Math 136, Math 99. and Dehn Sommerville manifolds [ArXiv]. Panoramas: Aug 28, Sep 3, Sep 11,20, Oct 1, Oct 3, Oct 6, Oct 17, Oct 23, Nov 1, Nov 4, Nov 6, Nov 24, Dec 5, Dec 9, Dec 15, Dec 18, Dec 22, Dec 27, Jan 2. Pythagorean triple day 9/16/25 with animation. Sad news about Andy Engelward.
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| Summer, 2025: Math S-21a 2025. Panoramas 2025: Cambridge 5/11, Schaffhausen 5/30, Visp I, Zermatt, Visp II, Neuhausen, Kohlfirst, Zürich, Cambridge, Winchester, July 4, July 12, Brooks, Boston, Medford, MIT, Tufts. On Geodesic Particles [ArXiv] and Remarks on the Brouwer conjecture [ArXiv].
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| Spring, 2025: Upper level coordination, S-2025, Probability Theory, 2025. "Density of Wave Fronts [ArXiv]" (see also Wolfram blog) and 2025 Panoramas. Soft Barycentric refinements [ArXiv]. An article in SciAM mentions odd perfect numbers. (See handout[PDF] and slides[PDF] and Media[M4V] from 2007.) "Geodesics for Discrete Manifolds [ArXiv]".
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