Skip to main content
Corrected grammar
Link
Olivier
  • 10.9k
  • 1
  • 47
  • 70

Does the $p$-part of the level of a newform appearsappear in its attached $p$-adic representation?

minor latex edit
Source Link
Myshkin
  • 17.6k
  • 5
  • 71
  • 137

Let $f$ a newform of weight $2$ on $\Gamma_0(Np^r)$, $N$ coprime to $p$, and consider its $p$-adic Galois representation $$ \rho:G_{\mathbb Q}\longrightarrow GL_2(\bar{\mathbb Q}_p) $$ It's a theorem of Carayol that the prime-to-$p$ conductor $N(\rho)$ of $\rho$ equals $N$. Hence, one can recover $N$ from ${\rho\vert_{I_q}}_{q\mid N}$\{\rho\vert_{I_q}\}_{q\mid N}$.

The question is:

Can $r$ be read in $\rho\vert_{I_p}$?

Thanks for your time!

Let $f$ a newform of weight $2$ on $\Gamma_0(Np^r)$, $N$ coprime to $p$, and consider its $p$-adic Galois representation $$ \rho:G_{\mathbb Q}\longrightarrow GL_2(\bar{\mathbb Q}_p) $$ It's a theorem of Carayol that the prime-to-$p$ conductor $N(\rho)$ of $\rho$ equals $N$. Hence, one can recover $N$ from ${\rho\vert_{I_q}}_{q\mid N}

The question is:

Can $r$ be read in $\rho\vert_{I_p}$?

Thanks for your time!

Let $f$ a newform of weight $2$ on $\Gamma_0(Np^r)$, $N$ coprime to $p$, and consider its $p$-adic Galois representation $$ \rho:G_{\mathbb Q}\longrightarrow GL_2(\bar{\mathbb Q}_p) $$ It's a theorem of Carayol that the prime-to-$p$ conductor $N(\rho)$ of $\rho$ equals $N$. Hence, one can recover $N$ from $\{\rho\vert_{I_q}\}_{q\mid N}$.

The question is:

Can $r$ be read in $\rho\vert_{I_p}$?

Thanks for your time!

Source Link

Does the $p$-part of the level of a newform appears in its attached $p$-adic representation?

Let $f$ a newform of weight $2$ on $\Gamma_0(Np^r)$, $N$ coprime to $p$, and consider its $p$-adic Galois representation $$ \rho:G_{\mathbb Q}\longrightarrow GL_2(\bar{\mathbb Q}_p) $$ It's a theorem of Carayol that the prime-to-$p$ conductor $N(\rho)$ of $\rho$ equals $N$. Hence, one can recover $N$ from ${\rho\vert_{I_q}}_{q\mid N}

The question is:

Can $r$ be read in $\rho\vert_{I_p}$?

Thanks for your time!