Defining parameters
| Level: | \( N \) | \(=\) | \( 1521 = 3^{2} \cdot 13^{2} \) |
| Weight: | \( k \) | \(=\) | \( 4 \) |
| Character orbit: | \([\chi]\) | \(=\) | 1521.a (trivial) |
| Character field: | \(\Q\) | ||
| Newform subspaces: | \( 40 \) | ||
| Sturm bound: | \(728\) | ||
| Trace bound: | \(17\) | ||
| Distinguishing \(T_p\): | \(2\), \(5\), \(7\) |
Dimensions
The following table gives the dimensions of various subspaces of \(M_{4}(\Gamma_0(1521))\).
| Total | New | Old | |
|---|---|---|---|
| Modular forms | 574 | 199 | 375 |
| Cusp forms | 518 | 188 | 330 |
| Eisenstein series | 56 | 11 | 45 |
The following table gives the dimensions of the cuspidal new subspaces with specified eigenvalues for the Atkin-Lehner operators and the Fricke involution.
| \(3\) | \(13\) | Fricke | Total | Cusp | Eisenstein | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| All | New | Old | All | New | Old | All | New | Old | ||||||
| \(+\) | \(+\) | \(+\) | \(147\) | \(41\) | \(106\) | \(133\) | \(41\) | \(92\) | \(14\) | \(0\) | \(14\) | |||
| \(+\) | \(-\) | \(-\) | \(141\) | \(36\) | \(105\) | \(127\) | \(36\) | \(91\) | \(14\) | \(0\) | \(14\) | |||
| \(-\) | \(+\) | \(-\) | \(140\) | \(59\) | \(81\) | \(126\) | \(54\) | \(72\) | \(14\) | \(5\) | \(9\) | |||
| \(-\) | \(-\) | \(+\) | \(146\) | \(63\) | \(83\) | \(132\) | \(57\) | \(75\) | \(14\) | \(6\) | \(8\) | |||
| Plus space | \(+\) | \(293\) | \(104\) | \(189\) | \(265\) | \(98\) | \(167\) | \(28\) | \(6\) | \(22\) | ||||
| Minus space | \(-\) | \(281\) | \(95\) | \(186\) | \(253\) | \(90\) | \(163\) | \(28\) | \(5\) | \(23\) | ||||
Trace form
Decomposition of \(S_{4}^{\mathrm{new}}(\Gamma_0(1521))\) into newform subspaces
Decomposition of \(S_{4}^{\mathrm{old}}(\Gamma_0(1521))\) into lower level spaces
\( S_{4}^{\mathrm{old}}(\Gamma_0(1521)) \simeq \) \(S_{4}^{\mathrm{new}}(\Gamma_0(9))\)\(^{\oplus 3}\)\(\oplus\)\(S_{4}^{\mathrm{new}}(\Gamma_0(13))\)\(^{\oplus 6}\)\(\oplus\)\(S_{4}^{\mathrm{new}}(\Gamma_0(39))\)\(^{\oplus 4}\)\(\oplus\)\(S_{4}^{\mathrm{new}}(\Gamma_0(117))\)\(^{\oplus 2}\)\(\oplus\)\(S_{4}^{\mathrm{new}}(\Gamma_0(169))\)\(^{\oplus 3}\)\(\oplus\)\(S_{4}^{\mathrm{new}}(\Gamma_0(507))\)\(^{\oplus 2}\)