Shintani Zeta Function: Riemann Function, Takuro Shintani, Hurwitz Function

Multiple zeta function: Mathematics, Simplex, Riemann function, Leonhard Euler, Harmonic number, Shintani...

Trigamma Function: Polygamma Function, Digamma Hurwitz Zeta Function

Riemann Xi Function: Mathematics, Zeta Function

Selberg Zeta Function: Atle Selberg, Riemann Function, Function