• Warl0k3@lemmy.world
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      8 months ago

      Disciplines in mathematics assume you’re familiar with that discipline’s shorthand, constants and common forms. Also, you’re not expected to read them as you’re able to read a book. If it’s 100% your niche specialty then maybe you could, but spending and hour or two puzzling out a broad understanding of a paper is absolutely normal, even for math academics.

      • ns1@feddit.uk
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        8 months ago

        It can feel like that, though I’m sure it’s (mostly) not deliberate. Also the sudden jump from straightforward to incomprehensible, accompanied by a comment from the author along the lines of “well duh”

  • Sasha [They/Them]
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    8 months ago

    Come on, you can’t just leave those dummy indices dangling, at least sum over them with a kronecker delta or the minkowski metric if this is some approximation of curved space.

    (2) Appears to have a typo, but it could just be that the sqrt symbol won’t extend further, which isn’t good either lol

    • mindbleach@sh.itjust.worksBannedBanned from community
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      8 months ago

      This is absolutely taking the piss. “No calculus is required” is obviously not true when there’s, what, five integrals on the page?

  • serendepity@lemmy.world
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    8 months ago

    If this is indeed real, can somebody please point me to the paper/text? That introduction has piqued my curiosity and I wanna read the whole thing, even if the math might be incomprehensible.

  • itslilith
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    8 months ago

    The square you root in the second equation should go over the both integrals, but that step is pointless anyways. Just by symmetryzing the integration boundaries it’s already a Gaussian integral, which is a standard integral