abstract:In mathematics, a universal graph is an infinite graph that contains every finite (or at-most-countable) graph as an induced subgraph. A universal graph of this type was first constructed by R.
Bysignalflowgraph, a new universalactivecurrentmodesecond-orderfilterwas designedbasisonestablishingMOStransistor small-signal model. The filter is of three-input and one-output.