Defining parameters
Level: | \( N \) | = | \( 656 = 2^{4} \cdot 41 \) |
Weight: | \( k \) | = | \( 6 \) |
Nonzero newspaces: | \( 20 \) | ||
Sturm bound: | \(161280\) | ||
Trace bound: | \(5\) |
Dimensions
The following table gives the dimensions of various subspaces of \(M_{6}(\Gamma_1(656))\).
Total | New | Old | |
---|---|---|---|
Modular forms | 67760 | 37930 | 29830 |
Cusp forms | 66640 | 37580 | 29060 |
Eisenstein series | 1120 | 350 | 770 |
Trace form
Decomposition of \(S_{6}^{\mathrm{new}}(\Gamma_1(656))\)
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 available newforms together with their dimension.
"n/a" means that newforms for that character have not been added to the database yet
Decomposition of \(S_{6}^{\mathrm{old}}(\Gamma_1(656))\) into lower level spaces
\( S_{6}^{\mathrm{old}}(\Gamma_1(656)) \cong \) \(S_{6}^{\mathrm{new}}(\Gamma_1(1))\)\(^{\oplus 10}\)\(\oplus\)\(S_{6}^{\mathrm{new}}(\Gamma_1(2))\)\(^{\oplus 8}\)\(\oplus\)\(S_{6}^{\mathrm{new}}(\Gamma_1(4))\)\(^{\oplus 6}\)\(\oplus\)\(S_{6}^{\mathrm{new}}(\Gamma_1(8))\)\(^{\oplus 4}\)\(\oplus\)\(S_{6}^{\mathrm{new}}(\Gamma_1(16))\)\(^{\oplus 2}\)\(\oplus\)\(S_{6}^{\mathrm{new}}(\Gamma_1(41))\)\(^{\oplus 5}\)\(\oplus\)\(S_{6}^{\mathrm{new}}(\Gamma_1(82))\)\(^{\oplus 4}\)\(\oplus\)\(S_{6}^{\mathrm{new}}(\Gamma_1(164))\)\(^{\oplus 3}\)\(\oplus\)\(S_{6}^{\mathrm{new}}(\Gamma_1(328))\)\(^{\oplus 2}\)\(\oplus\)\(S_{6}^{\mathrm{new}}(\Gamma_1(656))\)\(^{\oplus 1}\)