OPH · 64k
V25·Act V · Matter

Finite electromagnetic response

Field lines. A dipole on the carrier, the Green response streaming source to sink, and a closed surface whose flux count comes out exactly integer.

The relation on screen

Discrete exterior calculus on the seam complex gives a Green function with the Coulomb falloff.

Symbols

field two-form on cells
source, a defect label
potential at chart distance r
loading Green response

what to look for · The 1/r tail follows from the three-dimensionality established in Act II. It was never put in by hand.

Consensus to physics

  1. 01the carrier Laplacian has a Green function on the port basis
  2. 02port loads source a response through it
  3. 03the response satisfies exact discrete Gauss and temporal Maxwell identities
  4. 04seam fluxes behave like field strengths

In standard physics

Maxwell in discrete exterior calculus

Gauss's law as the boundary identity and Faraday as the temporal one, drawn on a graph instead of in continuous space. The structure is exact; the identification with physical electromagnetism is not made.

boundary · Port loads are not electric charge, seam fluxes are not E and B, and the step index is not physical time.