Properties

Label 160.2
Level 160
Weight 2
Dimension 366
Nonzero newspaces 10
Newform subspaces 18
Sturm bound 3072
Trace bound 9

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Defining parameters

Level: \( N \) = \( 160 = 2^{5} \cdot 5 \)
Weight: \( k \) = \( 2 \)
Nonzero newspaces: \( 10 \)
Newform subspaces: \( 18 \)
Sturm bound: \(3072\)
Trace bound: \(9\)

Dimensions

The following table gives the dimensions of various subspaces of \(M_{2}(\Gamma_1(160))\).

Total New Old
Modular forms 896 426 470
Cusp forms 641 366 275
Eisenstein series 255 60 195

Trace form

\( 366 q - 8 q^{2} - 4 q^{3} - 8 q^{4} - 10 q^{5} - 24 q^{6} - 4 q^{7} - 8 q^{8} - 10 q^{9} + O(q^{10}) \) \( 366 q - 8 q^{2} - 4 q^{3} - 8 q^{4} - 10 q^{5} - 24 q^{6} - 4 q^{7} - 8 q^{8} - 10 q^{9} - 20 q^{10} - 16 q^{11} - 40 q^{12} - 20 q^{13} - 40 q^{14} - 12 q^{15} - 64 q^{16} - 12 q^{17} - 48 q^{18} - 8 q^{19} - 28 q^{20} - 24 q^{21} - 32 q^{22} - 20 q^{23} + 16 q^{24} - 14 q^{25} + 16 q^{26} - 64 q^{27} + 32 q^{28} + 4 q^{29} + 20 q^{30} - 72 q^{31} + 32 q^{32} - 56 q^{33} + 16 q^{34} - 56 q^{35} + 32 q^{36} - 44 q^{37} - 24 q^{38} - 80 q^{39} - 24 q^{40} - 92 q^{41} - 48 q^{42} - 52 q^{43} - 88 q^{44} - 70 q^{45} - 88 q^{46} - 36 q^{47} - 112 q^{48} - 26 q^{49} - 52 q^{50} - 24 q^{51} - 24 q^{52} - 76 q^{53} - 32 q^{54} + 4 q^{55} - 48 q^{56} + 8 q^{57} + 56 q^{59} + 56 q^{60} - 68 q^{61} + 32 q^{62} + 100 q^{63} + 112 q^{64} + 12 q^{65} + 152 q^{66} + 100 q^{67} + 64 q^{68} + 24 q^{69} + 144 q^{70} + 80 q^{71} + 184 q^{72} + 60 q^{73} + 136 q^{74} + 80 q^{75} + 104 q^{76} + 56 q^{77} + 216 q^{78} + 48 q^{79} + 152 q^{80} + 94 q^{81} + 152 q^{82} - 44 q^{83} + 256 q^{84} + 68 q^{85} + 144 q^{86} - 72 q^{87} + 160 q^{88} + 28 q^{89} + 216 q^{90} - 80 q^{91} + 208 q^{92} + 112 q^{93} + 80 q^{94} - 64 q^{95} + 96 q^{96} - 28 q^{97} + 80 q^{98} - 112 q^{99} + O(q^{100}) \)

Decomposition of \(S_{2}^{\mathrm{new}}(\Gamma_1(160))\)

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
160.2.a \(\chi_{160}(1, \cdot)\) 160.2.a.a 1 1
160.2.a.b 1
160.2.a.c 2
160.2.c \(\chi_{160}(129, \cdot)\) 160.2.c.a 2 1
160.2.c.b 4
160.2.d \(\chi_{160}(81, \cdot)\) 160.2.d.a 4 1
160.2.f \(\chi_{160}(49, \cdot)\) 160.2.f.a 4 1
160.2.j \(\chi_{160}(87, \cdot)\) None 0 2
160.2.l \(\chi_{160}(41, \cdot)\) None 0 2
160.2.n \(\chi_{160}(63, \cdot)\) 160.2.n.a 2 2
160.2.n.b 2
160.2.n.c 2
160.2.n.d 2
160.2.n.e 2
160.2.n.f 2
160.2.o \(\chi_{160}(47, \cdot)\) 160.2.o.a 8 2
160.2.q \(\chi_{160}(9, \cdot)\) None 0 2
160.2.s \(\chi_{160}(7, \cdot)\) None 0 2
160.2.u \(\chi_{160}(43, \cdot)\) 160.2.u.a 88 4
160.2.x \(\chi_{160}(21, \cdot)\) 160.2.x.a 64 4
160.2.z \(\chi_{160}(29, \cdot)\) 160.2.z.a 88 4
160.2.ba \(\chi_{160}(3, \cdot)\) 160.2.ba.a 88 4

Decomposition of \(S_{2}^{\mathrm{old}}(\Gamma_1(160))\) into lower level spaces

\( S_{2}^{\mathrm{old}}(\Gamma_1(160)) \cong \) \(S_{2}^{\mathrm{new}}(\Gamma_1(16))\)\(^{\oplus 4}\)\(\oplus\)\(S_{2}^{\mathrm{new}}(\Gamma_1(20))\)\(^{\oplus 4}\)\(\oplus\)\(S_{2}^{\mathrm{new}}(\Gamma_1(32))\)\(^{\oplus 2}\)\(\oplus\)\(S_{2}^{\mathrm{new}}(\Gamma_1(40))\)\(^{\oplus 3}\)\(\oplus\)\(S_{2}^{\mathrm{new}}(\Gamma_1(80))\)\(^{\oplus 2}\)