Simplicity of PSLn(F) by Keith Conrad
= Simplicity of PSLn(F) by Keith Conrad
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By <Keith Conrad>.
https://kconrad.math.uconn.edu/blurbs/grouptheory/PSLnsimple.pdf
Verified locator: Introduction identifies PSL_n as SL_n modulo its center and gives the two exceptional finite fields for n=2; section 3 treats PSL_2.