In mathematics, a Fredholm kernel is a certain type of a kernel on a Banach space, associated with nuclear operators on the Banach space. They are an abstraction of the idea of the Fredholm integral equation and the Fredholm operator, and are one of the objects of study in Fredholm theory. Fredholm kernels are named in honour of Erik Ivar Fredholm. Much of the abstract theory of Fredholm kernels was developed by Alexander Grothendieck and published in 1955.
Read more about Fredholm Kernel: Definition, Properties, p-summable Kernels, Nuclear Operators On Banach Spaces, Grothendieck's Theorem, Examples, Nuclear Spaces
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