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Explicit unobstructed primes for modular deformation problems of squarefree level

T Weston, University of Massachusetts - Amherst

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The published version is located at http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6WKD-4D75KMY-5&_user=1516330&_coverDate=01%2F31%2F2005&_rdoc=1&_fmt=high&_orig=gateway&_origin=gateway&_sort=d&_docanchor=&view=c&_searchStrId=1699894215&_rerunOrigin=google&_acct=C000053443&_version=1&_urlVersion=0&_userid=1516330&md5=7914f5f52a42d2a3d3acf38536c22b61&searchtype=a

Abstract

Let f be a newform of weight k3 with Fourier coefficients in a number field K. We give explicit bounds on the set of primes λ of K for which the deformation problem associated to the mod λ Galois representation of f is obstructed. We include some explicit examples.

Suggested Citation

T Weston. "Explicit unobstructed primes for modular deformation problems of squarefree level" Journal of Number Theory 110.1 (2005): 199-218.
Available at: http://works.bepress.com/tom_weston/8



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