{"id":"palomar/PALOMAR-2026-10-14-000009","url":"https://github.com/stalex444/pdt-em-source-selection/tree/1c9ba637b5e664a88b6487d463515587616476e1","json":"https://data.palomar-registry.org/entries/PALOMAR-2026-10-14-000009-v2.json","repo":"https://github.com/stalex444/pdt-em-source-selection","tags":["math-ph","cs.LO","msc:15A72","msc:35Q61","msc:70S10","msc:78A25","msc:68V20","electromagnetism","tensor-analysis","formal-verification"],"score":0,"title":"Selection of the electromagnetic source tensor by covariance, conservation and the exchange law","trust":"high","domain":"math-ph","source":"palomar","authors":["Stephanie Alexander"],"reviews":0,"subject":"math-ph","summary":"On a fixed flat Lorentz frame with metric diag(1,1,1,-1), sources are symmetric 4x4 tensor-valued functions of the six real components of an antisymmetric field. Twelve kernel-checked statements. Among all symmetric homogeneous quadratic sources (210 free coefficients), the six infinitesimal Lorentz covariance equations together with zero trace select the Maxwell stress (the electromagnetic energy-momentum tensor) up to a unique real scale, and a displayed certificate of 209 linear coefficient equations is equivalent to both laws. Among the same homogeneous quadratic sources, conservation…","category":"research","comments":0,"disputed":false,"division":"math","mentions":0,"verified":true,"discussed":0,"published":"2026-10-16","reactions":{},"formalized":true}