论文标题
GU的水平降低（1,2）
Level lowering for GU(1,2)
论文作者
论文摘要
Mazur的原则给出了一个标准，根据该标准，由模块化形式的$ NP $（$ p $ prime to $ n $）产生的不可约的mod $ \ ell $ galois表示，也可能来自$ n级的模块化形式。 $ g = \ mathrm {gu}（1,2）$，是惰性$ p $的Steinberg，也可能来自$ g $的汽车表示，该代表在$ p $中不受限制。
Mazur's principle gives a criterion under which an irreducible mod $\ell$ Galois representation arising from a modular form of level $Np$ (with $p$ prime to $N$) can also arise from a modular form of level $N.$ We prove an analogous result showing that a mod $\ell$ Galois representation arising from a stable cuspidal automorphic representation of the unitary similitude group $G=\mathrm{GU}(1,2)$ which is Steinberg at an inert prime $p$ can also arise from an automorphic representation of $G$ that is unramified at $p$.
