||
创建时空可变系多线矢物理学(71)电磁场能量动量张量随a、b的变化特征.
(接(70))
当a=b=0,
[矢L(b,c)]
=Wr(b,c)0([r偏分D(b)0]T(b,c)00)[基矢(0)],y=0;
+Wr(b,c)0T(b,c)00w(a,ay)[基矢(0)],y不=(a=0),
当a=b=(u=1,2,3),
[矢L(b,c)]
=Wr(b,c)u([r偏分D(b)u]T(b,c)uu)[基矢(u)],y=u;
+Wr(b,c)uT(b,c)uuw(u,uy)[基矢(u)],y不=(u=1,2,3),
当ab=ba=(0u=0u或vw=wv;uvw=123循环),
[矢L(b,c)]
=Wr(b,c)a(([r偏分D(b)a]T(b,c)ab)+T(b,c)abw(a,aa))[基矢(b)]
+T(b,c)baw(a,bb)[基矢(b)]),y=(a=0或1,2,3);
+Wr(b,c)a((T(b,c)abw(a,ay))[基矢(b)],y不=a,
(因有T(b,c)ab=T(b,c)ab)
=Wr(b,c)a(([r偏分D(b)a]T(b,c)ab)+T(b,c)ab(w(a,aa)+w(a,bb)))[基矢(b)],
y=(a=0或1,2,3);
+Wr(b,c)a(T(b,c)abw(a,ay))[基矢(b)],y不=a,
(未完待续)
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