Contents of Volume 50

Integral formulas related to wave fronts

Sergei S. Anisov
Banach Center Publ. 50 (1999), 11-17.
Abstract

Singularities of convex hulls as fronts of Legendre varieties

Ilia A. Bogaevski
Banach Center Publ. 50 (1999), 61-74.
Abstract

The centre symmetry set

Peter Giblin, Paul Holtom
Banach Center Publ. 50 (1999), 91-105.
Abstract

Finite-type invariants of Legendrian knots in the 3-space: Maslov index as an order 1 invariant

Victor V. Goryuno, Jonathan W. Hill
Banach Center Publ. 50 (1999), 107-122.
Abstract

The rectifying developable and the spherical Darboux image of a space curve

Shyuichi Izumiya, Haruyo Katsumi, Haruyo Katsumi
Banach Center Publ. 50 (1999), 137-149.
Abstract

Invariant properties of the generalized canonical mappings

Stanislaw Janeczko
Banach Center Publ. 50 (1999), 151-161.
Abstract

On the uniqueness of the quasihomogeneity

Piotr Jaworski
Banach Center Publ. 50 (1999), 163-167.
Abstract

Topology and geometry of caustics in relation with experiments

Alain Joets
Banach Center Publ. 50 (1999), 169-177.
Abstract

Classification of Monge-Ampere equations with two variables

Boris Kruglikov
Banach Center Publ. 50 (1999), 179-194.
Abstract

Secondary characteristic classes for the isotropic Grassmannian

Malgorzata Mikosz
Banach Center Publ. 50 (1999), 195-204.
Abstract

Some remarks on duality in $S^3$

Ian R. Porteous
Banach Center Publ. 50 (1999), 217-226.
Abstract

Bifurcations of affine invariants for one-parameter family of generic convex plane curves

Takashi Sano
Banach Center Publ. 50 (1999), 227-236.
Abstract

Properties of conflict sets in the plane

Dirk Siersma
Banach Center Publ. 50 (1999), 267-276.
Abstract

Curvatures of conflict surfaces in Euclidean $3$-space

Jorge Sotomayor, Dirk Siersma, Ronaldo Garcia
Banach Center Publ. 50 (1999), 277-285.
Abstract

On geometry of fronts in wave propagations

Susumu Tanabe
Banach Center Publ. 50 (1999), 287-304.
Abstract