Browsing Department of Mathematics and Computer Studies by Title
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Torelli theorem for the DeligneHitchin moduli space (Prepublished version)
(Springer Verlag, 2009)Fix integers g ≥ 3 and r ≥ 2, with r ≥ 3 if g = 3. Given a compact connected Riemann surface X of genus g, let M DH (X) denote the corresponding SL(r,C) Deligne–Hitchin moduli space. We prove that the complex analytic ... 
Trace forms of symbol algebras (Prepublished version)
(World Scientific Publishing Complany, 2012)Let S be a symbol algebra. The trace form of S is computed and it is shown how this form can be used to determine whether S is a division algebra or not. In addition, the exterior powers of the trace form of S are computed. 
Twistor spaces with a pencil of fundamental divisors
(Documenta Mathematica, 1999)In this paper simply connected twistor spaces Z containing a pencil of fundamental divisors are studied. The Riemannian base for such spaces is diffeomorphic to the connected sum nCP2 . We obtain for n 5 a complete ... 
Which graphs are rigid in lpd?
(Springer, 20210313)We present three results which support the conjecture that a graph is minimally rigid in ddimensional ℓpspace, where p∈(1,∞) and p≠2, if and only if it is (d, d)tight. Firstly, we introduce a graph bracing operation ...