Concept

Shing-Tung Yau

Related publications (37)

Curvature-domain shape processing

We propose a framework for 3D geometry processing that provides direct access to surface curvature to facilitate advanced shape editing, filtering, and synthesis algorithms. The central idea is to map a given surface to the curvature domain by evaluating i ...

2008

Constraints for the existence of flat and stable non-supersymmetric vacua in supergravity

Claudio Scrucca

We further develop on the study of the conditions for the existence of locally stable non-supersymmetric vacua with vanishing cosmological constant in supergravity models involving only chiral super fields. Starting from the two necessary conditions for fl ...

2006

Superrigidity for irreducible lattices and geometric splitting

Nicolas Monod

We prove general superrigidity results for actions of irreducible lattices on CAT(0) spaces; first, in terms of the ideal boundary, and then for the intrinsic geometry (including for infinite-dimensional spaces). In particular, one obtains a new and self-c ...

2006

Anomaly cancellation in K3 orientifolds

Claudio Scrucca

We study in detail the pattern of anomaly cancellation in D = 6 Type IIB Z(N) orientifolds, occurring through a generalized Green-Schwarz mechanism involving several RR antisymmetric tensors and scalars fields. The starting point is a direct string theory ...

2000

Black holes as D3-branes on Calabi-Yau threefolds

Claudio Scrucca

We show how an extremal Reissner-Nordstrom black hole can be obtained by wrapping a dyonic D3-brane on a Calabi-Yau manifold. In the orbifold limit T-6/Z(3), We explicitly show the correspondence between the solution of the supergravity equations of motion ...

1998

Dynamical soft terms with unbroken supersymmetry

Riccardo Rattazzi

We construct a class of simple and calculable theories for the supersymmetry-breaking soft terms, They are based on quantum modified moduli spaces. These theories do not break supersymmetry in their ground state; instead we postulate that we live in a supe ...

1998

Stability and instability of expanding solutions to the Lorentzian constant-positive-mean-curvature flow

Willie Wai Yeung Wong

We study constant mean curvature Lorentzian hypersurfaces of R^{1,d+1} from the point of view of its Cauchy problem. We completely classify the spherically symmetric solutions, which include among them a manifold isometric to the de Sitter space of general ...

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