Hi you all.(adsbygoogle = window.adsbygoogle || []).push({});

Please forgive my poor English;

I will try to put my best foot forward!

I'm studying special relativity mostly on Naber's

"The geometry of Minkowski spacetime". Just after

introducing the concept of Lorentz matrix L

(by means of "M" I point its inverse) through

the well known relation

L^c_a L^d_b g_cd = g_ab

he states (pag. 22 equation following 1.3.10) that

L^4_i / L^4_4 = - M^i_4 / M^4_4

As far as I see no other assumption is involved in.

Please, can you give any hint about establishing

this equation ?

Best Regards

Barbara Da Vinci

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# About a Lorentz matrix and its inverse

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