Joining smooth patches around a vertex to form a Ck surface

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Abstract

Peters, J., Joining smooth patches around a vertex to form a Ck surface, Computer Aided Geometric Design 9 (1992) 387-411.

The problem of joining smooth patches as a Ck surface around a common point is analyzed. The continuity constraints that link the patches are circularly dependent so that their natural pairing with the derivatives of the patches leads to a rank deficient constraint matrix. Necessary and sufficient conditions to join the patches in the presence of the dependence are derived.

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