"Source: Text/Geometry/ModAbVar.text";
"Line: 3248";
"Date: Thu Sep 25 14:47:45 2025";
"Main: Fri Sep 26 14:29:19 2025";
// original file: Text/Geometry/ModAbVar.text, line: 3248
// Example: H148E59 ()
print "Example: H148E59";
ei := GetEchoInput();
SetEchoInput(true);
J := JZero(33);
T := HeckeOperator(J,2);
Factorization(CharacteristicPolynomial(T));
phi := T + 2;
A, pi := Cokernel(phi);
A;
pi;
SetEchoInput(ei);
