# Structurally stable configurations of lines of mean curvature and umbilic points on surfaces immersed in R3.

Ronaldo García; Jorge Sotomayor

Publicacions Matemàtiques (2001)

- Volume: 45, Issue: 2, page 431-466
- ISSN: 0214-1493

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topGarcía, Ronaldo, and Sotomayor, Jorge. "Structurally stable configurations of lines of mean curvature and umbilic points on surfaces immersed in R3.." Publicacions Matemàtiques 45.2 (2001): 431-466. <http://eudml.org/doc/41438>.

@article{García2001,

abstract = {In this paper we study the pairs of orthogonal foliations on oriented surfaces immersed in R3 whose singularities and leaves are, respectively, the umbilic points and the lines of normal mean curvature of the immersion. Along these lines the immersions bend in R3 according to their normal mean curvature. By analogy with the closely related Principal Curvature Configurations studied in [S-G], [GS2], whose lines produce the extremal normal curvature for the immersion, the pair of foliations by lines of normal mean curvature and umbilics, assembled together, are called Mean Curvature Configurations. This paper studies the stable and generic cases of umbilic points and mean curvature cycles, with their Poincaré map. This provides two of the essential local ingredients to establish sufficient conditions for mean curvature structural stability, the analog of principal curvature structural stability, [S-G], [GS2].},

author = {García, Ronaldo, Sotomayor, Jorge},

journal = {Publicacions Matemàtiques},

keywords = {Geometría euclídea; Superficies; Curvatura; umbilic point; mean curvature configuration; lines of mean curvature},

language = {eng},

number = {2},

pages = {431-466},

title = {Structurally stable configurations of lines of mean curvature and umbilic points on surfaces immersed in R3.},

url = {http://eudml.org/doc/41438},

volume = {45},

year = {2001},

}

TY - JOUR

AU - García, Ronaldo

AU - Sotomayor, Jorge

TI - Structurally stable configurations of lines of mean curvature and umbilic points on surfaces immersed in R3.

JO - Publicacions Matemàtiques

PY - 2001

VL - 45

IS - 2

SP - 431

EP - 466

AB - In this paper we study the pairs of orthogonal foliations on oriented surfaces immersed in R3 whose singularities and leaves are, respectively, the umbilic points and the lines of normal mean curvature of the immersion. Along these lines the immersions bend in R3 according to their normal mean curvature. By analogy with the closely related Principal Curvature Configurations studied in [S-G], [GS2], whose lines produce the extremal normal curvature for the immersion, the pair of foliations by lines of normal mean curvature and umbilics, assembled together, are called Mean Curvature Configurations. This paper studies the stable and generic cases of umbilic points and mean curvature cycles, with their Poincaré map. This provides two of the essential local ingredients to establish sufficient conditions for mean curvature structural stability, the analog of principal curvature structural stability, [S-G], [GS2].

LA - eng

KW - Geometría euclídea; Superficies; Curvatura; umbilic point; mean curvature configuration; lines of mean curvature

UR - http://eudml.org/doc/41438

ER -

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