Composition operators and Dirichlet series are central topics within functional analysis that bridge operator theory, analytic number theory and complex analysis. At their core, composition operators ...

In the late 19th century, Karl Weierstrass invented a fractal-like function that was decried as nothing less than a “deplorable evil.” In time, it would transform the foundations of mathematics.

model.dirichlet_values_ptr Function must allow call U = f(X,Y,model), where X, Y are vectors of the same size. Return is a vector of values in the corresponding points. decomp_function_ptr: dirichlet ...