Volume 138, Issue 1 – July 1993

The classification of the simple modular Lie algebras: IV. Determining the associated graded algebra

Pages 1-59 by Helmut Strade

Irreducible 4-manifolds need not be complex

Pages 61-111 by Robert E. Gompf, Tomasz S. Mrowka

The classification of alternating links

Pages 113-171 by William Menasco, Morwen Thistlethwaite

Harmonic tori in symmetric spaces and commuting Hamiltonian systems on loop algebras

Pages 173-212 by Francis E. Burstall, Dirk Ferus, Franz Pedit, Ulrich Pinkall

Sharp Sobolev inequalities on the sphere and the Moser–Trudinger inequality

Pages 213-242 by William Beckner