LMFDB - $M_{18, 12}(\mathrm{Sp}(4, \mathbb{Z}))$

This is a space of vector valued Siegel modular forms with real representation $\mathrm{Det}^{ 18}\otimes\mathrm{Sym}^{ 12 }$. The following table gives the dimensions of various subspaces of $M_{18, 12}(\mathrm{Sp}(4, \mathbb{Z}))$.

Total	19
Non cusp	2
Cusp	17

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This project is supported by grants from the US National Science Foundation, the UK Engineering and Physical Sciences Research Council, and the Simons Foundation.