I don't understand why we can write the elements of the lorentransformation in the form(adsbygoogle = window.adsbygoogle || []).push({});

## {\Lambda}^{\mu}\:_{\nu} = [exp(-\frac{i}{2}{\omega}^{\rho\sigma}M_{\rho\sigma})]^{\mu}\:_{\nu} ##

I know that we can write it in the form

## {\Lambda} = exp(t\Theta) ##

where

## \Theta ##

are elements of the Lie algebra

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# I Lorentz group

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