Jim Loy's Mathematics Page - Articles on geometry, algebra, number theory, and many other branches of mathematics. - http://www.jimloy.com/math/math.htm
Lessard, Jean-Philippe - Ph.D. student in Applied Mathematics at Georgia Tech. - http://www.math.gatech.edu/~lessard
Leon, Antonio - Scientific publications on Mathematics, Biology and History of Science. - http://www.terra.es/personal4/pjournal/
Lieb, Elliott - Professor of Mathematics and Physics, Princeton University. Mathematical Physics, Functional Analysis, Condensed Matter Physics. - http://www.math.princeton.edu/~lieb