Four-dimensional Walker metrics and symplectic structures

CANONICAL FORM FOR A RIEMANNIAN SPACE WITH A PARALLEL FIELD OF NULL PLANES

Aled Walker · The Quarterly Journal of Mathematics · 1950 · 190 citations

Natural Sciences, Astronomy, Descriptive Geometry +9

Fields of 2-planes and two kinds of almost complex structures on compact 4-dimensional manifolds

Yasuo Matsushita · Mathematische Zeitschrift · 1991 · 52 citations

Natural Sciences, Mathematics, Geometry +9

Indefinite Kähler-Einstein metrics on compact complex surfaces

1997 · 39 citations

Natural Sciences, Mathematics, Physics +14

Hitchin–Thorpe-Type Inequalities for Pseudo-Riemannian 4-Manifolds of Metric Signature (++−−)

Yasuo Matsushita, Peter R. Law · Geometriae Dedicata · 2001 · 31 citations

Natural Sciences, Mathematics, Geometry +6

CANONICAL FORMS (II): PARALLEL PARTIALLY NULL PLANES

Aled Walker · The Quarterly Journal of Mathematics · 1950 · 31 citations

Natural Sciences, Mathematics, Form-finding +6