T
OPOLOGICAL
M
ETHODS
IN
N
ONLINEAR
A
NALYSIS
Vol. 13, No. 2 June 1999
TABLE OF CONTENTS
Title and Author(s)
Page
Degree and Sobolev Spaces
H. Brezis, Y. Li, P. Mironescu and L. Nirenberg
181
Sign Changing Solutions of Nonlinear Schrödinger Equations
T. Bartsch and Z.-Q. Wang
191
Concentration of Solutions for a Nonlinear Elliptic Problem with Nearly Critical Exponent
J. Chabrowski and S. Yan
199
Quasilinear Parabolic Equations with Nonlinear Monotone Boundary Conditions
Ch.-Y. Lin
235
A Semilinear Elliptic Equation with Convex and Concave Nonlinearities
E. Tonkes
251
Existence of Many Sign-Changing Nonradial Solutions for Semilinear Elliptic Problems on Thin Annuli
A. Castro and M. B. Finan
273
Bifurcation of Periodic Solutions of the Navier-Stokes Equations in a Thin Domain
R. Johnson, P. Nistri and M. Kamenskii
281
Analyse Algébrique d'un Problème de Dirichlet non Linéaire et Singulier
J.-A. Marti - S. P. Nuiro
301
A Fixed Point Index for Equivariant Maps
D. L. Ferrario
313
Fixed Point Theorems and Fixed Point Index for Countably Condensing Maps
M. Väth
341
Computer Assisted Method for Proving Existence of Periodic Orbits
P. Pilarczyk
365