The idea of “forcing” has long been used in many research fields, such as colorings, orientations, geodetics and dominating sets in graph theory, as well as Latin squares, block designs and Steiner systems in combinatorics (see [1] and the references therein). Recently, the forcing on perfect matchings has been attracting more researchers attention. A forcing set of M is a subset of M contained...

Background: Violence against women is a problem of public health on a global scale. Two decades of international research organizations including the World Health Organization show the problem of violence against women is more serious and more common than was previously considered. These studies aimed to investigate, the most common causes of violence against women and prevention strategy from ...

Interferometric Synthetic Aperture Radar is used to measure deformation rates over continents constrain tectonic processes. The resulting velocity measurements are only relative, however, due unknown integer ambiguities introduced during propagation of the signal through atmosphere. These mostly cancel when using spectral diversity estimate along-track motion, allowing be made with respect a gl...