Since Pringsheim introduced the notion of convergence of a numerical double series in terms of the convergence of the double sequence of its rectangular partial sums in, several authors have contributed to this topic during the last century. However, an exhaustive treatment giving analogues of all wellBiographyEdit. His son, Klaus Pringsheim Jr. , attended Bunce Court School, a GermanJewish refugee school in Kent, England during World War II. Along with making big effort for spreading and establishing classical music in Japan. He had a great influence on Japanese musicians. His famous students are Kmei Abe, Kozaburo Hirai and Isotaro Sugata. pringsheim series
vergent series, any prescribed behavior regarding convergence or divergence could be obtained, Ohm and Schlomilch investigated the rearrangements of the type given above, while Pringsheim first discovered the general results for when the relative frequency of the positive and negative terms is modified to give a prescribed asymptotic limit.