# Math Help - Prove group homomorphism

1. ## Prove group homomorphism

Prove group homomorphism between SL(2,C) and L(4,R)

Thanks!

2. Originally Posted by pc31
Prove group homomorphism between SL(2,C) and L(4,R)

Thanks!
What's $\text{L}(4,\mathbb{R})$? Probably you meant $\text{SL}(4,\mathbb{R})$.

So, what's natural? Why has two become four? Think about the information gained when just having a complex number $z$ to describing it as $x+iy$