John R Schmitt, Ph.D.          Professor of Mathematics      Department of Mathematics and Statistics       Middlebury College             Middlebury, VT 05753, USA          Phone:1- 802-443-5952                        E-mail: jschmitt@middlebury.edu            Office: Warner Hall 205          Office Hours: (Spring '24) Tuesday 1pm-2:15pm, Wednesday 9--10:30am, Friday 9:30--11am and by arrangement