A class of superconformal surfaces

Verfasser / Beitragende:
[M. Dajczer, Th. Vlachos]
Ort, Verlag, Jahr:
2015
Enthalten in:
Annali di Matematica Pura ed Applicata (1923 -), 194/6(2015-12-01), 1607-1618
Format:
Artikel (online)
ID: 605496153
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024 7 0 |a 10.1007/s10231-014-0436-0  |2 doi 
035 |a (NATIONALLICENCE)springer-10.1007/s10231-014-0436-0 
245 0 2 |a A class of superconformal surfaces  |h [Elektronische Daten]  |c [M. Dajczer, Th. Vlachos] 
520 3 |a Superconformal surfaces in Euclidean space are the one for which the ellipse of curvature at any point is a nondegenerate circle. They can be characterized as the surfaces for which a well-known pointwise inequality relating the intrinsic Gauss curvature with the extrinsic normal and mean curvatures, due to Wintgen (C R Acad Sci Paris T Ser A 288:993-995, 1979) and Guadalupe-Rodríguez (Pac J Math 106:95-103, 1983) for any codimension, reaches equality at all points. In this paper, we show that any pedal surface to a $$2$$ 2 -isotropic Euclidean surface is superconformal. Opposed to almost all known examples, superconformal surfaces in this class are not conformally equivalent to minimal surfaces. Moreover, they can be given in an explicit parametric form since $$2$$ 2 -isotropic surfaces admit a Weierstrass-type representation. 
540 |a Fondazione Annali di Matematica Pura ed Applicata and Springer-Verlag Berlin Heidelberg, 2014 
690 7 |a Superconformal surface  |2 nationallicence 
690 7 |a Ellipse of curvature  |2 nationallicence 
690 7 |a Pedal surface  |2 nationallicence 
690 7 |a s-Isotropic surface  |2 nationallicence 
700 1 |a Dajczer  |D M.  |u IMPA, Estrada Dona Castorina, 110, 22460-320, Rio de Janeiro, Brazil  |4 aut 
700 1 |a Vlachos  |D Th  |u Mathematics Department, University of Ioannina, 45110, Ioannina, Greece  |4 aut 
773 0 |t Annali di Matematica Pura ed Applicata (1923 -)  |d Springer Berlin Heidelberg  |g 194/6(2015-12-01), 1607-1618  |x 0373-3114  |q 194:6<1607  |1 2015  |2 194  |o 10231 
856 4 0 |u https://doi.org/10.1007/s10231-014-0436-0  |q text/html  |z Onlinezugriff via DOI 
898 |a BK010053  |b XK010053  |c XK010000 
900 7 |a Metadata rights reserved  |b Springer special CC-BY-NC licence  |2 nationallicence 
908 |D 1  |a research-article  |2 jats 
949 |B NATIONALLICENCE  |F NATIONALLICENCE  |b NL-springer 
950 |B NATIONALLICENCE  |P 856  |E 40  |u https://doi.org/10.1007/s10231-014-0436-0  |q text/html  |z Onlinezugriff via DOI 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Dajczer  |D M.  |u IMPA, Estrada Dona Castorina, 110, 22460-320, Rio de Janeiro, Brazil  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Vlachos  |D Th  |u Mathematics Department, University of Ioannina, 45110, Ioannina, Greece  |4 aut 
950 |B NATIONALLICENCE  |P 773  |E 0-  |t Annali di Matematica Pura ed Applicata (1923 -)  |d Springer Berlin Heidelberg  |g 194/6(2015-12-01), 1607-1618  |x 0373-3114  |q 194:6<1607  |1 2015  |2 194  |o 10231