NTS/Abstracts/Fall2010
Shuichiro Takeda, Purdue
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Xinyi Yuan
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Jared Weinstein, IAS
| Title: Semistable reduction of modular curves |
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David Zywna, U Penn
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Soroosh Yazdani, UBC and SFU
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Zhiwei Yun, MIT
| Title: From automorphic forms to Kloosterman sheaves (joint work with J.Heinloth and B-C.Ngo) |
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Abstract: Classical Kloosterman sheaves are rank n local systems on the punctured line (over a finite field) which incarnate Kloosterman sums in a geometric way. The arithmetic properties of the Kloosterman sums (such as estimate of absolute values and distribution of angles) can be deduced from geometric properties of these sheaves. In this talk, we will construct generalized Kloosterman local systems with an arbitrary reductive structure group using the geometric Langlands correspondence. They provide new examples of exponential sums with nice arithmetic properties. In particular, we will see exponential sums whose equidistribution laws are controlled by exceptional groups E_7,E_8,F_4 and G_2. |
Samit Dasgupta, UC Santa Cruz
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Jay Pottharst, Boston University
| Title: Iwasawa theory at nonordinary primes |
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Toby Gee, Northwestern
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