Volume 17: January 2018 - December 2018

Contents

Singularities and stable homotopy groups of spheres. I	1
Csaba Nagy, András Szűcs, and Tamás Terpai

Singularities and stable homotopy groups of spheres. II	28
András Szűcs and Tamás Terpai

A polynomial invariant for plane curve complements: Krammer polynomials	58
Mehmet Aktaş, Serdar Cellat, and Hubeyb Gurdogan

On vertices and inflections of plane curves	70
Fabio Scalco Dias and Farid Tari

On Projective Umbilics: a Geometric Invariant and an Index	81
Ricardo Uribe-Vargas

Rational cuspidal curves on del-Pezzo surfaces	91
Indranil Biswas, Shane D'Mello, Ritwik Mukherjee, and Vamsi P. Pingali

Artin Approximation	108
Guillaume Rond

Extrinsic geometry and higher order contacts of surfaces in R^5	193
Pierre Bayard, Felipe Méndez Varela, and Federico Sánchez-Bringas

Corrigendum: Briançon-Speder examples and the failure of weak Whitney regularity	214
K. Bekka and D. Trotman

Orbifold equivalence: structure and new examples	216
Andreas Recknagel and Paul Weinreb

Théorèmes de Borel avec contraintes	245
D. Cerveau and D. Garba Belko

Surgery of real symplectic fourfolds and Welschinger invariants	267
Erwan Brugallé

The fundamental group of the complement of the singular locus of Lauricella's F_C	295
Yoshiaki Goto and Jyoichi Kaneko

The chain-level intersection product for PL pseudomanifolds revisited	330
Greg Friedman

On the signed Euler characteristic property for subvarieties of abelian varieties	368
Eva Elduque, Christian Geske, and Laurentiu Maxim

Topological classification of circle-valued simple Morse-Bott functions	388
E.B. Batista, J.C.F. Costa, and I.S. Meza-Sarmiento

Radial index related to an intersection index	403
Julie Lapebie

Deforming monomial space curves into set-theoretic complete intersection singularities	413
Michel Granger and Mathias Schulze

Mixed Hodge structures on the rational models of intersection spaces	428
Mathieu Klimczak