Difference between holomorphic-function positive-frequency part and negative of negative-frequency part makes a function {hyperfunction}. Hyperfunctions have sums, derivatives, and products with analytic functions. Two hyperfunctions have no product. Hyperfunctions can represent Heaviside step function, Dirac delta function, and all analytic and holomorphic functions.
Mathematical Sciences>Algebra>Function>Kinds>Complex
3-Algebra-Function-Kinds-Complex
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Date Modified: 2022.0224