On double statistical -convergence of fuzzy numbers.
On evaluations of infinite double sums and Tornheim's double series.
On generalized Lambert summability
On the evaluation of Euler sums.
On Tornheim's double series
On value-relations, functional relations and singularities of Mordell-Tornheim and related triple zeta-functions
On Witten multiple zeta-functions associated with semisimple Lie algebras I
We define Witten multiple zeta-functions associated with semisimple Lie algebras , of several complex variables, and prove the analytic continuation of them. These can be regarded as several variable generalizations of Witten zeta-functions defined by Zagier. In the case , we determine the singularities of this function. Furthermore we prove certain functional relations among this function, the Mordell-Tornheim double zeta-functions and the Riemann zeta-function. Using these relations, we prove...