1 citations · 2 across the 2 of their papers we have counts for
9 papers
Invariant Spin Structures on Riemann Surfaces
Sadok Kallel, Denis Sjerve
We investigate the action of the automorphism group of a closed Riemann surface on its set of theta characteristics (or spin structures). We give criteria for when an automorphism…
Some Remarks on Symmetric Products of Curves
Sadok Kallel
Symmetric products of curves are important spaces for both geometers and topologists, and increasingly useful objects for physicists. We summarize in this note some of their basic…
On the Group of Automorphisms of Cyclic Covers of the Riemann Sphere
Sadok Kallel, Denis Sjerve
This note uses some recent calculations of Conder and Bujalance (on classifying finite index group extensions of Fuchsian groups with abelian quotient and torsion free kernel) in o…
On the Topology of Fibrations with Section and Free Loop Spaces
Sadok Kallel, Denis Sjerve
We relate the brace products of a fibration with section to the differentials in its serre spectral sequence. In the particular case of free loop fibrations, we establish a link be…
Configuration Spaces and the Topology of Curves in Projective Space
Sadok Kallel
We survey and expand on the work of Segal, Milgram and the author on the topology of spaces of maps of positive genus curves into -th complex projective space, (in bot…
Genus Zero Actions on Riemann Surfaces
Sadok Kallel, Denis Sjerve
In this paper we determine all finite groups G that can act on some compact Riemann surface M with the property that if H is any non-trivial subgroup of G, then the orbit surface M…