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arxiv: math/0104161 · v2 · submitted 2001-04-16 · 🧮 math.AP · math.DG

Hodge equations with change of type

classification 🧮 math.AP math.DG
keywords equationsboundary-valuecertainchangedetaildiscellipticelliptic-hyperbolic
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A geometric interpretation is given for certain elliptic-hyperbolic systems in the plane. Among several examples, one which reduces in the elliptic region to the equations for harmonic 1-forms on the projective disc is studied in detail. A boundary-value problem for this example is formulated and is shown to possess weak solutions.

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