"Source: Text/Geometry/ModAbVar.text";
"Line: 5866";
"Date: Thu Sep 25 14:47:45 2025";
"Main: Fri Sep 26 14:29:19 2025";
// original file: Text/Geometry/ModAbVar.text, line: 5866
// Example: H148E87 ()
print "Example: H148E87";
ei := GetEchoInput();
SetEchoInput(true);
Chi28 := FullDirichletGroup(28);
chi := Chi28.1*Chi28.2;
Chi28;
Order(Chi28), Order(chi);
 M28chi := CuspidalSubspace( ModularSymbols(chi, 2, 1));
M28chi;
qEigenform(M28chi);
Parent(Coefficients(qEigenform(M28chi))[2]);
A := ModularAbelianVariety(M28chi);
A;
delta, F := DegreeMap(M28chi);
F;
BrauerClass(M28chi);
delta;  // This came from DegreeMap, above.
ObstructionDescentBuildingBlock(M28chi);
Universe($1);  // What are these places elements of?
SetEchoInput(ei);
