X Number of Possibilities

The number of possibilities for random dating

Let G be a regular graph and H a subgraph on the same vertex set. We give surprisingly compact formulas for the number of copies of H one expects to find in a random subgraph of G.

On the Defining Number of (2n - 2)-Vertex Colorings of Kn x Kn

Possibilities of the Philosophy of History

Possibilities for projection x-ray lithography using holographic optical elements.

The use of a single flat grazing incidence reflector on which a computer-generated hologram has been written is proposed for projection x-ray lithography.

X-ray single crystal and powder diffraction: possibilities and applications

In this article the main possibilities of single crystal and powder diffraction analysis using conventional laboratory x-ray sources are introduced. Several examples of applications with different solid samples and in different fields of applications are shown illustrating the multidisciplinary capabilities of both techniques. Handbook of instrumental techniques from CCiTUB X-ray single crystal...