формула 2.3 опечатка - справа-снизу (1-u*v/c)^2 - c должна быть в квадрате.
1 − u ′ 2 c 2 = ( 1 − u 2 c 2 ) ⋅ 1 − v 2 / c 2 ( 1 − u ⋅ v / c 2 ) 2 , {\displaystyle 1-{\frac {\mathbf {u} '^{2}}{c^{2}}}=\left(1-{\frac {\mathbf {u} ^{2}}{c^{2}}}\right)\cdot {\frac {1-\mathbf {v} ^{2}/c^{2}}{(1-\mathbf {u} \cdot \mathbf {v} /c^{2})^{2}}},}