On the Existence and Temperedness of Cusp Forms for SL(3,Z)
Stephen Miller
Yale University

Here you can download my paper on the Weyl law and temperedness for Sl(3,Z)

dvi sl3spectrum.dvi
postscript sl3spectrum.ps
Adobe PDF sl3spectrum.pdf

Here is an appendix that I couldn't include as part of the file
dvi sl3chart.dvi
postscript sl3chart.ps
PDF sl3chart.pdf

This paper is an expansion of part of my thesis, and uses techniques from there to prove a further result: that 100% of cusp forms on SL(3,Z)\SL(3,R)/SO(3,R) are tempered at infinity.