Dear GAP forum, I encountered a curious behavior when I tried to use IsAlgExtRep:
x:=Indeterminate(GF(2), "x"); f:=x^5+x^3+Z(2)^0; gf:=GF(2,f); prim:=PrimitiveElement(gf); IsAlgExtRep(prim); In the above code, I expected IsAlgExtRep(prim) to return true, but it tells me that it's false instead. If I change the polynomial to: f:=x^17+x^13+x^11+x^10+x^9+x^7+x^6+x^5+x^4+x^2+Z(2)^0, it correctly tells me that IsAlgExtRep(prim) is true. I've tried a few other irreducible polynomial of degree smaller than 17 but they all returned false. Can you explain what's going on for me? Best regards, Ha T. Lam _______________________________________________ Forum mailing list Forum@mail.gap-system.org http://mail.gap-system.org/mailman/listinfo/forum
