Defining parameters
Level: | \( N \) | = | \( 76 = 2^{2} \cdot 19 \) |
Weight: | \( k \) | = | \( 7 \) |
Nonzero newspaces: | \( 6 \) | ||
Newform subspaces: | \( 7 \) | ||
Sturm bound: | \(2520\) | ||
Trace bound: | \(1\) |
Dimensions
The following table gives the dimensions of various subspaces of \(M_{7}(\Gamma_1(76))\).
Total | New | Old | |
---|---|---|---|
Modular forms | 1125 | 640 | 485 |
Cusp forms | 1035 | 608 | 427 |
Eisenstein series | 90 | 32 | 58 |
Trace form
Decomposition of \(S_{7}^{\mathrm{new}}(\Gamma_1(76))\)
We only show spaces with odd 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.
Decomposition of \(S_{7}^{\mathrm{old}}(\Gamma_1(76))\) into lower level spaces
\( S_{7}^{\mathrm{old}}(\Gamma_1(76)) \cong \) \(S_{7}^{\mathrm{new}}(\Gamma_1(4))\)\(^{\oplus 2}\)\(\oplus\)\(S_{7}^{\mathrm{new}}(\Gamma_1(19))\)\(^{\oplus 3}\)\(\oplus\)\(S_{7}^{\mathrm{new}}(\Gamma_1(38))\)\(^{\oplus 2}\)