Properties

Label 70.2
Level 70
Weight 2
Dimension 45
Nonzero newspaces 6
Newforms 10
Sturm bound 576
Trace bound 4

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Defining parameters

Level: \( N \) = \( 70 = 2 \cdot 5 \cdot 7 \)
Weight: \( k \) = \( 2 \)
Nonzero newspaces: \( 6 \)
Newforms: \( 10 \)
Sturm bound: \(576\)
Trace bound: \(4\)

Dimensions

The following table gives the dimensions of various subspaces of \(M_{2}(\Gamma_1(70))\).

Total New Old
Modular forms 192 45 147
Cusp forms 97 45 52
Eisenstein series 95 0 95

Trace form

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

Decomposition of \(S_{2}^{\mathrm{new}}(\Gamma_1(70))\)

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
70.2.a \(\chi_{70}(1, \cdot)\) 70.2.a.a 1 1
70.2.c \(\chi_{70}(29, \cdot)\) 70.2.c.a 4 1
70.2.e \(\chi_{70}(11, \cdot)\) 70.2.e.a 2 2
70.2.e.b 2
70.2.e.c 2
70.2.e.d 2
70.2.g \(\chi_{70}(13, \cdot)\) 70.2.g.a 8 2
70.2.i \(\chi_{70}(9, \cdot)\) 70.2.i.a 4 2
70.2.i.b 4
70.2.k \(\chi_{70}(3, \cdot)\) 70.2.k.a 16 4

Decomposition of \(S_{2}^{\mathrm{old}}(\Gamma_1(70))\) into lower level spaces

\( S_{2}^{\mathrm{old}}(\Gamma_1(70)) \cong \) \(S_{2}^{\mathrm{new}}(\Gamma_1(14))\)\(^{\oplus 2}\)\(\oplus\)\(S_{2}^{\mathrm{new}}(\Gamma_1(35))\)\(^{\oplus 2}\)