• drolex@sopuli.xyz
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    1 year ago

    WARNING: If your compact Kähler manifold whose first Chern class is vanishing is also Ricci-flat, then it is a Calabi-Yau. Proceed with care.

    • Risk of non-Riemaniann metric
    • Holonomy equal to a subgroup of SU(n)
    • Possibility of mild singularities
  • Num10ck@lemmy.world
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    1 year ago

    i read once that untangling fabric is the hardest part of domestic robots. we don’t have the math for laundry.

    • Natanael@slrpnk.net
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      1 year ago

      And we still can’t replace human seamstresses, reliably automating many processes is STILL hard

      • prole
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        1 year ago

        Completely unrelated, but I just noticed that “seamstress” still seems acceptable, despite shifting more toward gender neutral vocational titles. The only other one I can think of was “stewardess” which was changed to “Flight Attendant.”

        Is there a difference between a tailor and a seamstress? Or is the latter just the female version of the former, and therefore an archaic term?

  • dessimbelackis@lemmy.world
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    1 year ago

    I used to see a local band named Calabi-yau. Their sound was kind of a rush-inspired math-rock. Really talented guys. Guitar player got hired by google and moved so the group kind of retired

  • KittyCat@lemmy.world
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    1 year ago

    More like half awake me trying to take the laplacian of my pillow for my very important dream test.

  • CommissarVulpin@lemmy.world
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    1 year ago

    Wow, I had no idea the Calabi-Yau Manifold was a real thing. I thought it was just made up for Barotrauma, since that was the only place I heard of it. It sounded Lovecraftian enough so I never questioned it lol

    • jaemo
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      1 year ago

      There’s a great book by Greg Egan called Diaspora that explores the idea that every atom is a Calabai-Yau manifold, and the aperture to a wormhole via Kaluza-Klein handwavery. It’s a bit of a heavy read at times but super interesting.