GL_2(Q_p)的博雷尔子群的不可约模表示
Irreducible modular representations of the Borel subgroup of GL_2(Q_p)
摘要:
设E是Fp的有限扩张.利用Fontaine的(phi,Gamma)-模理论,Colmez证明了如何在Gal(Qpbar/Qp)的任一不可约E-线性表示上附加B_2(Qp)的一个具有中心特征标的无穷维光滑不可约E-线性表示。我们证明了B_2(Qp)的每一个这样的表示都是这样产生的。我们的证明推广到特征为p的代数闭域E。在这种情况下,具有中心特征标的B_2(Qp)的无穷维光滑不可约E-线性表示以类似的方式从Qp的Weil群的不可约E-线性表示产生。
英文摘要:
Let E be a finite extension of Fp. Using Fontaine's theory of (phi,Gamma)-modules, Colmez has shown how to attach to any irreducible E-linear representation of Gal(Qpbar/Qp) an infinite dimensional smooth irreducible E-linear representation of B_2(Qp) that has a central character. We prove that every such representation of B_2(Qp) arises in this way. Our proof extends to algebraically closed fields E of characteristic p. In this case, infinite dimensional smooth irreducible E-linear representations of B_2(Qp) having a central character arise in a similar way from irreducible E-linear representations of the Weil group of Qp.
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