Finiteness of Minimal Modular Symbols for SLn

✍ Scribed by Paul E Gunnells

• Publisher: Elsevier Science
• Year: 2000
• Tongue: English
• Weight: 137 KB
• Volume: 82
• Category: Article
• ISSN: 0022-314X
• DOI: 10.1006/jnth.1999.2481

✦ Synopsis

Let KÂQ 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.