Titlebook: Riemannian Geometry of Contact and Symplectic Manifolds; David E. Blair Book 20021st edition Springer Science+Business Media New York 2002

壮丽的去

Negative ,-sectional Curvature,ctional curvature for plane sections containing the characteristic vector field . or more generally when the operator . admits an eigenvalue greater than 1; these directions were introduced by the author in [1998]. We also discuss in this chapter some questions concerning Anosov and conformally Anos

表示问

Complex Contact Manifolds,tion and as many examples are now appearing in the literature, especially twistor spaces over quaternionic Kähler manifolds (e.g., LeBrun [1991], [1995], Moroianu and Semmelmann [1994], Salamon [1982], Ye [1994]), the time is ripe for another look at the subject. As an indication of this interest we

华而不实

LEER

Tangent Bundles and Tangent Sphere Bundles,ngent bundle and the tangent sphere bundle is of sufficient importance to warrant its own development, rather than specializing from the vector bundle case. As we saw in Chapter 1, the cotangent bundle of a manifold has a natural symplectic structure and we will see here that the same is true of the tangent bundle of a Riemannian manifold.

delusion

Negative ,-sectional Curvature,han 1; these directions were introduced by the author in [1998]. We also discuss in this chapter some questions concerning Anosov and conformally Anosov flows. For simplicity we will often refer to the sectional curvature of plane sections containing the characteristic vector field . as ..

小隔间

David E. Blairrent studies – focusing on a single context or single metric rarely tells a useful story. But, in each study, the requirements of the local context are liable to impose different constraints on study design, the metrics to be collected, and other factors. Thus, even when all the studies focus on the

Brittle

David E. Blairrent studies – focusing on a single context or single metric rarely tells a useful story. But, in each study, the requirements of the local context are liable to impose different constraints on study design, the metrics to be collected, and other factors. Thus, even when all the studies focus on the

cushion

Instantaneous

不足的东西

David E. Blair collective intelligence can be harnessed ubiquitously. Smart Cities are conceptualized using citywide smart and intelligent architectures informed by the context in which they are implemented. These architectures make it possible to access information and intelligence anywhere and at any time. Info