VIII International Colloquium on Differential Geometry
Santiago de Compostela, 7-11 July 2008
Fourth Colloquium

Held from 18 to 21 of September, 1978, this fourth edition of the series of Colloquia has been specially dedicated to celebrate the 70th anniversary of Prof. E. Vidal Abascal as well as his academic retirement.

There were 46 participants coming from 8 different countries (Argentine, Belgium, France, Germany, Great Britain, Spain, Switzerland and United States). There were 7 plenary lectures by invitation, and the invited lecturers were J. Eells (Great Britain), A. Gray (USA), A. Haefliger (Switzerland), A. Lichnerowicz (France), G. Reeb (France), B.L. Reinhart (USA) and L.A. Santaló (Argentine).

Again, the proceedings of this Colloquium were published in the series “Cursos e Congresos” of the University of Santiago de Compostela in 1979. A total of 27 conferences and/or communications are collected in these proceedings. The reference of this publication is the following:

Proceedings of the IV International Colloquium on Differential Geometry. (September 1978) (Luís A. Cordero and Luís M. Hervella, editors)
Universidade de Santiago de Compostela. Cursos e congresos da Universidade de Santiago de Compostela, 15, Santiago de Compostela, 1979.
I.S.B.N.: 84-7191-148-5


Talks (* = Invited lecturer):

M. Barros and J. Castellano (Granada):
Some surfaces in U(q+1)/U(1) x U(q) and U(q+2)/U(2) x U(q).
D. Bernard (Strasbourg):
Espaces homogènes et repère mobile.
F. Brickell (Southampton):
A mapping problem in Geometrical Optics.
C. Curras- Bosch (Barcelona):
A study over infinitesimal isometries in isometric inmersions.
P. Dedecker (Leuven):
On applications of homological algebra to calculus of variations and mathematical physics.
A. Diaz Miranda (Barcelona Aut.):
Sur la topologie des Grassmanniennes lagrangiennes complexes.
F. J. Echarte Reula and F. Jiménez Alcón (Sevilla):
The similarity in Gl^+(n, R) in relation with their uniparametric subgroups.
* J. Eells (Warwick):
On the surfaces of Delaunay and their Gauss maps.
J. Etayo (Madrid):
Lifts of derivations and differentiations to the tangent bundle.
J. Girbau (Barcelona Aut.):
Vanishing theorems for complex analytic foliate manifolds.
* A. Gray (Maryland):
Mean values in Riemannian manifolds.
* A. Haefliger (Genève):
Feuilletages avec feuilles minimales.
W. Klingenberg (Bonn):
Closed geodesics.
M. de León (Santiago):
Sprays and connections on the tangent bundle of order 2.
P. Libermann (Paris):
Sur la classification des structures presque hermitiennes.
* A. Lichnerowicz (Collège de France):
Feuilletages et déformations infinitésimales des algèbres de Lie associées.
P. Molino (Montpellier):
Problème d'équivalence pour les \Gamma-structures et problème de Darboux.
A. M. Naveira and A. Ramírez (Valencia):
A classification of a family of naturally reductive homogeneous spaces.
A. Plans (Zaragoza):
Heterogonal systems of subspaces.
J. P. Ramis (Strasbourg):
Solutions Gevrey des equations differentielles à points singuliers irreguliers.
* G. Reeb (Strasbourg):
Equations differentielles et analyse non classique (d'après J. L. Callot).
* B. L. Reinhart (Maryland):
Foliations and second fundamental forms.
A. Reventós (Barcelona Aut.):
On the Gauss-Bonnet formula on odd-dimensional manifolds.
J. Sancho San Román (Zaragoza):
Formations of associative or Lie algebras.
* L. A. Santaló (Buenos Aires):
Integral Geometry: History and Perspectives.
J. Teixidor (Barcelona):
Sur le calcul du nombre de Milnor.
L. Vanhecke (Leuven):
The volume of tubes and Riemannian geometry.


M. Barros (Granada, Spain)
D. Bernard (Strasbourg, France)
A. Bonome (Santiago, Spain)
F. Brickell (Southampton, UK)
J. Cabrerizo (Sevilla, Spain)
J. M. Carballés (Santiago, Spain)
R. Castro Bolaño (Santiago, Spain)
L. A. Cordero (Santiago, Spain)
C. Currás Bosch (Barcelona, Spain)
P. Dedecker (Leuven, Belgium)
R. Deheuvels (Paris, France)
A. Díaz Miranda (Barcelona, Spain)
F. J. Echarte (Sevilla, Spain)
J. Eells (Warwick, UK)
L. Esteban Carrasco (Granada, Spain)
J. J. Etayo (Madrid, Spain)
M. Fernández Rodríguez (Santiago, Spain)
F. Gaeta (Barcelona, Spain)
J. Girbau (Barcelona, Spain)
A. Gray (Maryland, USA)
A. Haefliger (Genève, Switzerland)
L. M. Hervella (Santiago, Spain)
W. Klingenberg (Bonn, Germany)
M. de León (Santiago, Spain)
P. Libermann (Paris, France)
A. Lichnerowicz (Collège de France)
J. L. López Rosendo (Santiago, Spain)
P. Martínez Gadea (Valladolid, Spain)
X. Masa (Santiago, Spain)
P. Molino (Montpellier, France)
A. Montesdeoca (La Laguna, Spain)
A. M. Naveira (Valencia, Spain)
A. Plans (Zaragoza, Spain)
M. A. de Prada (Bilbao, Spain)
J. P. Ramis (Strasbourg, France)
G. Reeb (Strasbourg, France)
B. L. Reinhart (Maryland, USA)
A. Reventós (Barcelona, Spain)
J. Sancho San Román (Zaragoza, Spain)
L. A. Santaló (Buenos Aires, Argentine)
J. Teixidor (Barcelona, Spain)
E. de la Torre (Santiago, Spain)
J. F. Torres Lopera (Santiago, Spain)
J. Vaquer (Barcelona, Spain)
L. Vanhecke (Leuven, Belgium)
J. L. Vicente Córdoba (Sevilla, Spain)
Enrique Vidal Abascal