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        "date_start":"2026-11-03",
        "date_end":"2026-11-03",
        "time_start":"17:00:00",
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        "event_title":"Global Wellposedness for the Hele-Shaw Problem with Point Injection",
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        "combined_title":"Global Wellposedness for the Hele-Shaw Problem with Point Injection: Zhengjun(Jasper) Liang",
        "event_subtitle":"Zhengjun(Jasper) Liang",
        "event_type":"Workshop \/ Seminar",
        "event_type_id":"21",
        "description":"We study the two-dimensional Hele-Shaw problem with point injection for star-shaped domains. We reduce the system to a nonlocal parabolic equation of the interface, and for arbitrary Lipschitz initial interface away from the source, we prove global well-posedness of the interface equation in a strong sense. We also introduce a viscosity-solution framework for the interface equation and relate it to the classical viscosity theory for the Hele-Shaw problem.",
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        "tags":["Mathematics"],
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