Are Geometric and Exterior Algebra Isomorphic?

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  • เผยแพร่เมื่อ 26 ม.ค. 2025

ความคิดเห็น • 12

  • @wolfcanyon
    @wolfcanyon 5 หลายเดือนก่อน +8

    Is this abstract algebra?

  • @mastershooter64
    @mastershooter64 4 หลายเดือนก่อน +4

    modules over what ring?

    • @sudgylacmoe
      @sudgylacmoe  4 หลายเดือนก่อน +1

      Any commutative ring!

  • @alvargd6771
    @alvargd6771 4 หลายเดือนก่อน

    whats the backwards L thing

    • @sudgylacmoe
      @sudgylacmoe  4 หลายเดือนก่อน +1

      That's the left contraction. I go over it in more detail in this video: th-cam.com/video/2AKt6adG_OI/w-d-xo.html

  • @05degrees
    @05degrees 4 หลายเดือนก่อน

    Oooh. This looks clearer than what I’d read on Wikipedia. Though don’t we have another module isomorphism where we just treat ∧ in the same way? Why wouldn’t that work? Or if it would then I’ll be less surprised in the end (if there is no unique isomorphism).
    Thinking on it, classical factor-of-the-tensor-algebra constructions do also give some evidence of having vA from Clifford algebra and v∧A from exterior algebra corresponding better to each other than if there are any other ways.

    • @sudgylacmoe
      @sudgylacmoe  4 หลายเดือนก่อน +1

      That doesn't work because v^2 can be nonzero while v∧v is always zero.

  • @richardchapman1592
    @richardchapman1592 5 หลายเดือนก่อน +12

    The quest for knowledge would seem to produce minds that can come to the same conclusion independently. A bit like quantum entanglement with an underlying scheme that makes two entangled particles seem connected. All points towards a psychological field that is relevant at

    • @umbraemilitos
      @umbraemilitos 5 หลายเดือนก่อน +3

      I think it is more like when people try to solve different variations of the same problem, and design similar tools to solve them. Do you need to hammer nails? Invent a hammer. Do you need to hammer blocks, invent a mallet. Do you need to hammer rocks? Invent a sledge hammer.

    • @richardchapman1592
      @richardchapman1592 4 หลายเดือนก่อน

      @@umbraemilitos your example of what I was trying to say where you cite the invention of tools is splendid. I do, though wonder if

    • @richardchapman1592
      @richardchapman1592 4 หลายเดือนก่อน

      @@umbraemilitos paradigms are also mental tools in one interpretation. In this case the notion that quantum entanglement is a fiction similar to telepathically produced independent solutions is one derived from a Bohm perspective in what, to me was a new example of the time honoured method of inventing analogies. So, the elements involved are a cultural diffusion of a paradym from one sphere of knowledge to another. Likely somebody else thought of it too, independently.