Identities involving series of the Riemann zeta function
Starting from infinite product expansions for \(\sin z\), \(\cos z\), \(\sinh z\), and \(\cosh z\) for special values of \(z\), and using a logarithmic form of Stirling's formula, the authors derive various identities relating Euler's constant with values of the Riemann zeta-function at positive integers.
Riemann zeta-function at positive integers
scientific article; zbMATH DE number 1319738