convex domain, minimal graph, conjugate surfaces, associate surfaces, harmonic univalent mappings
Krust established that all conjugate and associate surfaces of a minimal graph over a convex domain are also graphs. Using a convolution theorem from the theory of harmonic univalent mappings, we generalize Krust's theorem to include the family of convolution surfaces which are generated by taking the Hadamard product or convolution of mappings. Since this convolution involves convex univalent analytic mappings, this family of convolution surfaces is much larger than just the family of associated surfaces. Also, this generalization guarantees that all the resulting surfaces are over close-toconvex domains. In particular, all the associate surfaces and certain Goursat transformation surfaces of a minimal graph over a convex domain are over close-to-convex domains.
Original Publication Citation
Proceedings of the American Mathematical Society, Vol 132, no 2, pp. 491-498.
BYU ScholarsArchive Citation
Dorff, Michael, "Minimal graphs in R3 over convex domains" (2003). All Faculty Publications. 490.
First published in Proceedings of the American Mathematical Society Vol 132, no 2, published by the American Mathematical Society.
Physical and Mathematical Sciences
© 2003 The American Mathematical Society.
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