The discussion highlights the perception that English is the dominant language in research mathematics, particularly in differential geometry. While it is acknowledged that a small but significant community of Sinophone scholars exists, and that some research has been published in other languages like French or historically in Russian, the consensus leans towards English as the preferred language for disseminating important research findings. The conversation notes that while there may be niche journals allowing publications in other languages, these are typically internal and not widely recognized. Historical context is provided regarding the publication of Russian papers prior to the fall of the Berlin Wall, emphasizing that scientists often preferred English for broader impact. Overall, the discussion underscores the challenges of accessing non-English research in mathematics.