Louis Zulli

A Riemann Sum applet:

Research articles and preprints:

• (with B. Shtylla) Ortho-projection graphs:  (242K pdf file).
• (with B. Shtylla) An extension of the Jones polynomial of classical knots (J. Knot Theory Ramifications):  (504K postscript file) (588K pdf file).
• A matrix invariant of curves in S^2 (J. Knot Theory Ramifications):  (350K postscript file) (193K pdf file).
• A prime curve is determined by its VF-matrix (Proc. Amer. Math. Soc.):  (568K postscript file) (298K pdf file).
• Seifert 3-manifolds that are bundles and semi-bundles (Houston J. Math.):  (409K postscript file) (232K pdf file).
• The rank of the trip matrix of a positive knot diagram (J. Knot Theory Ramifications):  (237K postscript file) (119K pdf file).
• Semibundle decompositions of 3-manifolds and the twisted cofundamental group (Topology Appl.):  (315K postscript file) (173K pdf file).

Articles for non-specialists:

• The incredibly knotty checkerboard challenge (Math. Mag.):  (273K postscript file) (145K pdf file).

Miscellany:

• Knotscape for OS X (Panther): (5M GZip compressed tar file).

Photos:

• Utah Vacation 2006