Gordon E. Keller

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Let f be a nondegenerate quadratic form in n > 5 variables over a number field K and let S be a finite set of valuations of K containing all Archimedean ones. We prove that if the Witt index of f is > 2 or it is 1 and S contains a non-Archimedean valuation, then the S-arithmetic subgroups of SOn(f) have bounded generation. These groups provide a series of(More)
The inhalation of grain dust by grain workers is responsible for a large number of pulmonary pathophysiologies. These problems may be acute or chronic and may be mediated by the chronic activation of the immune system. Constant inflammatory states in the lung may eventually lead to tissue damage and respiratory deficit. This study was designed to measure(More)
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