Christian Klein
![Speaking at the 2023 [[World Economic Forum]]](https://upload.wikimedia.org/wikipedia/commons/1/1e/Christian_Klein_%28born_1980%29_at_World_Economic_Forum_Davos_2023.png)
Christian Klein (born 1980) is a German business executive. He is the current CEO of SAP SE. Following the departure of co-CEO Jennifer Morgan, SAP SE returned to a sole CEO model.
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Computational approach to Riemann surfaces
Year of Publication 2011
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