Infinite-Space Dyadic Green Functions in Electromagnetism - Paperbackby Muhammad Faryad (Author), Akhlesh Lakhtakia (Author) In any linear system the input and the output are connected by means of a linear operator. When the input can be notionally represented by a function that is null valued everywhere except at a specific location in spacetime, the corresponding output is called the Green function in field theories. Dyadic Green functions are commonplace in electromagnetics, because both the input and the output are