Volume 26, No. 1 (1990)

On Rational Elliptic Surfaces with Multiple Fibers

Extended Affine Root Systems II (Flat Invariants)

A Systematization of the $L^2$-well-posed Mixed Problem and Its Applications to the Mixed Problem for Weakly Hyperbolic Equations of Second Order (II)

The Moduli Space of Extremal Compact Kähler Manifolds and Generalized Well-Petersson Metrics

Solvability In Distributions for a Class of Singular Differential Operators, III

Newton Polygons and Formal Gevrey Classes