Properties

Label 189.2
Level 189
Weight 2
Dimension 902
Nonzero newspaces 16
Newform subspaces 37
Sturm bound 5184
Trace bound 9

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Defining parameters

Level: \( N \) = \( 189 = 3^{3} \cdot 7 \)
Weight: \( k \) = \( 2 \)
Nonzero newspaces: \( 16 \)
Newform subspaces: \( 37 \)
Sturm bound: \(5184\)
Trace bound: \(9\)

Dimensions

The following table gives the dimensions of various subspaces of \(M_{2}(\Gamma_1(189))\).

Total New Old
Modular forms 1476 1062 414
Cusp forms 1117 902 215
Eisenstein series 359 160 199

Trace form

\( 902 q - 12 q^{2} - 24 q^{3} - 26 q^{4} - 18 q^{5} - 36 q^{6} - 35 q^{7} - 60 q^{8} - 36 q^{9} + O(q^{10}) \) \( 902 q - 12 q^{2} - 24 q^{3} - 26 q^{4} - 18 q^{5} - 36 q^{6} - 35 q^{7} - 60 q^{8} - 36 q^{9} - 36 q^{10} - 30 q^{11} - 60 q^{12} - 42 q^{13} - 51 q^{14} - 90 q^{15} - 70 q^{16} - 60 q^{17} - 54 q^{18} - 36 q^{19} - 60 q^{20} - 24 q^{21} - 114 q^{22} - 18 q^{23} - 52 q^{25} - 18 q^{27} - 106 q^{28} - 48 q^{29} - 18 q^{30} - 54 q^{31} - 78 q^{32} - 36 q^{33} - 96 q^{34} - 72 q^{35} - 108 q^{36} - 82 q^{37} - 168 q^{38} - 102 q^{39} - 120 q^{40} - 108 q^{41} - 54 q^{42} - 130 q^{43} - 108 q^{44} - 18 q^{45} - 96 q^{46} - 30 q^{47} + 102 q^{48} - 43 q^{49} + 78 q^{50} + 54 q^{51} + 12 q^{52} + 138 q^{53} + 180 q^{54} + 12 q^{55} + 267 q^{56} + 6 q^{57} + 48 q^{58} + 150 q^{59} + 180 q^{60} - 6 q^{61} + 270 q^{62} + 81 q^{63} + 100 q^{64} + 150 q^{65} + 126 q^{66} + 28 q^{67} + 276 q^{68} + 36 q^{69} + 57 q^{70} - 30 q^{71} + 108 q^{72} + 12 q^{73} + 6 q^{74} - 24 q^{75} + 42 q^{76} - 21 q^{77} - 36 q^{78} - 26 q^{79} - 6 q^{80} - 108 q^{81} - 120 q^{82} - 180 q^{83} - 42 q^{84} - 102 q^{85} - 258 q^{86} - 54 q^{87} - 42 q^{88} - 156 q^{89} - 72 q^{90} - 123 q^{91} - 126 q^{92} + 42 q^{93} - 132 q^{94} - 78 q^{95} - 36 q^{96} - 90 q^{97} - 96 q^{98} - 18 q^{99} + O(q^{100}) \)

Decomposition of \(S_{2}^{\mathrm{new}}(\Gamma_1(189))\)

We only show spaces with even parity, since no modular forms exist when this condition is not satisfied. Within each space \( S_k^{\mathrm{new}}(N, \chi) \) we list the newforms together with their dimension.

Label \(\chi\) Newforms Dimension \(\chi\) degree
189.2.a \(\chi_{189}(1, \cdot)\) 189.2.a.a 1 1
189.2.a.b 1
189.2.a.c 1
189.2.a.d 1
189.2.a.e 2
189.2.a.f 2
189.2.c \(\chi_{189}(188, \cdot)\) 189.2.c.a 2 1
189.2.c.b 4
189.2.c.c 4
189.2.e \(\chi_{189}(109, \cdot)\) 189.2.e.a 2 2
189.2.e.b 2
189.2.e.c 2
189.2.e.d 4
189.2.e.e 6
189.2.e.f 6
189.2.f \(\chi_{189}(64, \cdot)\) 189.2.f.a 6 2
189.2.f.b 6
189.2.g \(\chi_{189}(100, \cdot)\) 189.2.g.a 2 2
189.2.g.b 10
189.2.h \(\chi_{189}(37, \cdot)\) 189.2.h.a 2 2
189.2.h.b 10
189.2.i \(\chi_{189}(143, \cdot)\) 189.2.i.a 2 2
189.2.i.b 10
189.2.o \(\chi_{189}(62, \cdot)\) 189.2.o.a 12 2
189.2.p \(\chi_{189}(26, \cdot)\) 189.2.p.a 2 2
189.2.p.b 4
189.2.p.c 4
189.2.p.d 12
189.2.s \(\chi_{189}(17, \cdot)\) 189.2.s.a 2 2
189.2.s.b 10
189.2.u \(\chi_{189}(4, \cdot)\) 189.2.u.a 132 6
189.2.v \(\chi_{189}(22, \cdot)\) 189.2.v.a 54 6
189.2.v.b 54
189.2.w \(\chi_{189}(25, \cdot)\) 189.2.w.a 132 6
189.2.ba \(\chi_{189}(5, \cdot)\) 189.2.ba.a 132 6
189.2.bd \(\chi_{189}(47, \cdot)\) 189.2.bd.a 132 6
189.2.be \(\chi_{189}(20, \cdot)\) 189.2.be.a 132 6

Decomposition of \(S_{2}^{\mathrm{old}}(\Gamma_1(189))\) into lower level spaces

\( S_{2}^{\mathrm{old}}(\Gamma_1(189)) \cong \) \(S_{2}^{\mathrm{new}}(\Gamma_1(21))\)\(^{\oplus 3}\)\(\oplus\)\(S_{2}^{\mathrm{new}}(\Gamma_1(27))\)\(^{\oplus 2}\)\(\oplus\)\(S_{2}^{\mathrm{new}}(\Gamma_1(63))\)\(^{\oplus 2}\)