On the topology and fundamental group of permutation products and fat diagonals
Joint with Walid Taamallah
Preprint.

Symmetric joins and weighted barycenters pdf
Joint with with Rym Karoui
To appear in Advanced Nonlinear Studies

Remarks on Finite Subset Spaces pdf
Joint with Denis Sjerve
Homology, Homotopy and Applications Vol. 11 (2009), No. 2, 229--250.

Invariant spin structures on Riemann surfaces pdf
Joint with Denis Sjerve
To appear in the Annales Mathematiques de Toulouse

Symmetric products, duality and homological dimension of configuration Spaces pdf
Geometry and Topology Monographs 13 (2008) 499-527.

Symmetric products of two dimensional complexes pdf
Joint with Paolo Salvatore
Contemporary Mathematics 407 (2006), 147--161.

Rational maps and string topology pdf
Joint with Paolo Salvatore
Geometry and Topology 10 (2006) 1579--1606.

On the group of automorphisms of cyclic covers of the Riemann sphere pdf
Joint with Denis Sjerve
Math. Proc. Camb. Ph. Soc. 138 (2005), no. 2, 267--287.

On cyclic covers of the Riemann sphere and a related class of curves pdf
Joint with Denis Sjerve and Sinan Yong
Advances in topological quantum field theory, NATO Sci. Ser. II 179, Kluwer(2004), 327--353.

Configuration spaces and the topology of curves in projective space pdf
Contemp. Math. 279, (2001), 151--175.

An analog of the May-Milgram model for configuration spaces with multiplicities pdf
Contemp. Math. 279 (2001), 135--149.

On the topology of fibrations with section and free loop spaces pdf
Joint with Denis Sjerve
Proc. London Math. Soc. (3) 83 (2001) 419--442.

Particle spaces on manifolds and generalized Poincaré dualities pdf
Quarterly J. Math. 52, part1 (2001), 45--70.

Genus zero actions on Riemann surfaces pdf
Joint with Denis Sjerve
Kyushu Math. J. 54 (2000), 1--24.

Divisor spaces on punctured Riemann surfaces pdf
Transactions Am. Math. Soc. 350 (1998), 135--164.

The geometry of spaces of holomorphic maps from a Riemann surface into complex projective space pdf
Joint with R. James Milgram
Journal Diff. Geometry 47 (1997) 321--375.