Stilb (unit) Stilb (unit) The stilb (sb) is the CGS unit of luminance for objects that are not self-luminous. It is equal to one candela per square centimeter or 10 nits (candelas per square meter). The name was coined by the French physicist André Blondel around 1920. It comes from the Greek word "stilbein" meaning "to glitter". It was in common use in Europe up to World War I. In North America self-explanatory terms such as candle per square inch and candle per square meter were more common. The unit has since largely been replaced by the SI unit: candela per square
Curvature of a measure by One may also refer to the curvature of "μ" at a given point "x": in which case In this section, R is thought of as the complex plane C. Melnikov and Verdera (1995) showed the precise relation of the boundedness of the Cauchy kernel to the curvature of measures. They proved that if there is some constant "C" such that for all "x" in C and all "r" > 0, then there is another constant "C", depending only on "C", such that for all "ε" > 0. Here "c" denotes a truncated version of the Menger-Melnikov curvature in which