Am I missing something? what's the difference between $SL(2,C)$ (matrices 2x2 complex coefficients and determinant 1) and $PSL(2,C)$ which is isomorphic to $PGL(2,C)$ (matrices of complex coefficients with determinant 1)? Are $PSL(2,C)$ and $SL(2,C)$ the same?
2026-03-30 00:03:47.1774829027
what's the difference between $SL(2,C)$ and $PSL(2,C)$?
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