On the L-series of F. Pellarin

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Abstract

The calculation, by L. Euler, of the values at positive even integers of the Riemann zeta function, in terms of powers of π and rational numbers, was a watershed event in the history of number theory and classical analysis. Since then many important analogs involving L-values and periods have been obtained. In analysis in finite characteristic, a version of Euler's result was given by L. Carlitz (1937) [Ca2], (1940) [Ca3] in the 1930s which involved the period of a rank 1 Drinfeld module (the Carlitz module) in place of π. In a very original work (Pellarin, 2011 [Pe2]), F. Pellarin has quite recently established a "deformation" of Carlitz's result involving certain L-series and the deformation of the Carlitz period given in Anderson and Thakur (1990) [AT1]. Pellarin works only with the values of this L-series at positive integral points. We show here how the techniques of Goss (1996) [Go1] also allow these new L-series to be analytically continued - with associated trivial zeroes - and interpolated at finite primes. © 2011 Elsevier Inc.

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APA

Goss, D. (2013). On the L-series of F. Pellarin. Journal of Number Theory, 133(3), 955–962. https://doi.org/10.1016/j.jnt.2011.12.001

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