Representing Seashells Surface
G. Lucca (2003)
Visual Mathematics
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G. Lucca (2003)
Visual Mathematics
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Brakke, Kenneth A. (1992)
Experimental Mathematics
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Joets, Alain, Ribotta, Roland (1999)
Experimental Mathematics
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G. Lucca (2004)
Visual Mathematics
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Obradović, Ratko (1999)
Novi Sad Journal of Mathematics
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Balan, Vladimir, Vîlcea, Ştefania-Alina (2005)
Balkan Journal of Geometry and its Applications (BJGA)
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M. P. Dussan, M. Magid (2010)
Annales Polonici Mathematici
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We characterize the Christoffel pairs of timelike isothermic surfaces in the four-dimensional split-quaternions. When restricting the receiving space to the three-dimensional imaginary split-quaternions, we establish an equivalent condition for a timelike surface in ℝ³₂ to be real or complex isothermic in terms of the existence of integrating factors.
Martin Bright (2011)
Acta Arithmetica
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Chris Peters (1995)
Cours de l'institut Fourier
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Udo Simon, Konrad Voss, Luc Vrancken, Martin Wiehe (2002)
Banach Center Publications
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We investigate pairs of surfaces in Euclidean 3-space with the same Weingarten operator in case that one surface is given as surface of revolution. Our local and global results complement global results on ovaloids of revolution from S-V-W-W.
O. Karwowski (1964)
Annales Polonici Mathematici
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Tosun, Murat, Ersoy, Soley, Gungor, Mehmet Ali (2007)
APPS. Applied Sciences
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Allan L. Edmonds (2008)
Fundamenta Mathematicae
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Those maps of a closed surface to the three-dimensional torus that are homotopic to embeddings are characterized. Particular attention is paid to the more involved case when the surface is nonorientable.
Phelan, Robert, Weaire, Denis, Brakke, Kenneth (1995)
Experimental Mathematics
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Mandal, B.N., Ghosh, N.K. (1990)
International Journal of Mathematics and Mathematical Sciences
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