Finiteness of Minimal Modular Symbols fo
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Paul E Gunnells
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Article
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2000
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Elsevier Science
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English
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Let KรQ be a number field with ring of integers O, and let 1/SL n (O) be a finite index subgroup. Using a classical construction from the geometry of numbers and the theory of modular symbols, we exhibit a finite spanning set of the highest nonvanishing rational cohomology group of 1.