MAXIMAL VARIETIES AND THE LOCAL LANGLANDS CORRESPONDENCE FOR GL(n)
نویسنده
چکیده
The cohomology of the Lubin-Tate tower is known to realize the local Langlands correspondence for GL(n) over a nonarchimedean local field. In this article we make progress towards a purely local proof of this fact. To wit, we find a family of formal schemes V such that the generic fiber of V is isomorphic to an open subset of Lubin-Tate space at infinite level, and such that the middle cohomology of the special fiber of V realizes the local Langlands correspondence for a broad class of supercuspidals (those whose Weil parameters are induced from an unramified degree n extension). The special fiber of V is related to an interesting variety X, defined over a finite field, which is “maximal” in the sense that the number of rational points of X is the largest possible among varieties with the same Betti numbers as X. The variety X is derived from a certain unipotent algebraic group, in an analogous manner as Deligne-Lusztig varieties are derived from reductive algebraic groups.
منابع مشابه
On the Local Langlands Correspondence
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