Moduli spaces of 2-stage Postnikov systems

On the Cohomology of Two-stage Postnikov Systems

On the Cohomology of Stable Two Stage Postnikov Systems

Introduction. Let £ = (£ , p, B, F) denote a two stage Postnikov system with stable fe-invariant. We announce results about H*(ÜE) as a Hopf algebra over the Steenrod algebra. Mod 2 cohomology is used exclusively. Unexplained notation is from [4] and [S]. 1 am grateful to D. Anderson, W. Massey, F . Peterson and H. Salomonsen for many useful remarks. We make the following assumptions on £, in a...

Moduli Spaces of Dynamical Systems on P

Moduli Spaces of Dynamical Systems on P

2 00 2 The Homology of the real moduli spaces

We compute the rank of the first homology group and study the higher Betti numbers of the real points of the Deligne-Mumford-Knudsen com-pactification of stable n-pointed curves of genus 0,which coincides with the Chow quotient (RP 1)

2 8 N ov 2 00 5 Moduli spaces of local systems and higher Teichmüller theory