Contents
Preface
Gradient Estimates at the Boundary for Solutions to Nondivergence
Elliptic Equations
B. BARCELO, L. ESCAURIAZA, and E. F ABES
Interior Regularity of Solutions to Monge Ampere Equations
Xl
L. A. CAFFARELLI 13
The Helson-Szego Theorem in
U
of the Bidimensional Torus
M. COTLAR and C. SADOSKY 19
Galerkin Methods for the Boundary Integral Equations of Elliptic
Equations in Nonsmooth Domains
B. E. J. DAHLBERG and G. VERCHOTA 39
Some Applications of Hardy Spaces and BMO in Harmonic Analysis
and Partial Differential Equations
R. FEFFERMAN 61
The Positive Cone in Triebel-Lizorkin Spaces and the Relation Among
Potential and Maximal Operators
B. JAWERTH, C. PEREZ, and G. WELLAND 71
Changes of Variable and
Ap
Weights
R. JOHNSON 93
Progress on Two Problems Posed by Riviere
C. E. KENIG 101
Fredholm Theory for Periodic Solutions of Some Semilinear P.D.E.s
with Homogeneous Nonlinearities
A. C. LAZER and
P.
J. MCKENNA 109
Stability of Solitary Waves
W. A. STRAUSS 123
IX
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