Stage of theoretical creation. Mathematical Theory of Communication is a classic communication paper by Claude elwood Shannon, an American mathematician and founder of information theory. First published in 1948. According to relevant data, communication mathematics theory is the basic work of information theory, which marks the establishment of information theory and belongs to the theoretical establishment stage. Information theory is an applied mathematics subject that studies information, information entropy, communication system, data transmission, cryptography, data compression and so on by means of probability theory and mathematical statistics.