"Espaces à connexion affine, projective et conforme", Acta Math., 48: 1–42, doi:10.1007/BF02629755 A more mathematically motivated account of affine connections...

xv+132 pp. ISBN 3-540-09749-X Les tenseurs. Suivi de "Torseurs sur un espace affine by Y. Bamberger and J.-P. Bourguignon. Second edition. Hermann, Paris...

point de l'espace affine attaché au point m' correspond à tel point de l'espace affine attaché au point m, que tel vecteur du premier espace es parallèle ou...

differential geometry, the torsion tensor is a tensor that is associated to any affine connection. The torsion tensor is a bilinear map of two input vectors X...

depending on what sort of data one wants to transport. For instance, an affine connection, the most elementary type of connection, gives a means for parallel...

the affine connection and then separately posing a constraint that forces both the torsion and contorsion to be zero, which thus forces the affine connection...

geometry, a Cartan connection is a flexible generalization of the notion of an affine connection. It may also be regarded as a specialization of the general concept...

geometric setting it is a statement about the triviality of vector bundles on affine space. The theorem states that every finitely generated projective module...

quadric or a reducible quadric. A quadric is an affine algebraic variety, or, if it is reducible, an affine algebraic set. Quadrics may also be defined in...

category theory used in multiple contexts, such as with covering spaces (espace étalé). They were introduced as a mechanism for keeping track of data surrounding...

consisting of orthogonal unit vectors (an orthonormal basis). An affine frame of an affine space consists of a choice of origin along with an ordered basis...

structure group. Ehresmann, C. (1950). "Les connexions infinitésimales dans un espace fibré différentiel". Colloque de Topologie, Bruxelles: 29–55. Kobayashi...

and in particular semisimple Lie algebras. There is a generalization to affine Lie algebras shown by Feigin and Frenkel showing that an algebra known as...

the weak topology, then every group (or equivalently: every semigroup) of affine isometries of K {\displaystyle K} has at least one fixed point. (Here, a...

Alain Connes and André Lichnerowicz, Paris, O. Jacob; Saint-Gély du Fesc : Espace 34 (2000)/Triangle of thoughts Les failles du darwinisme, La Recherche,...

regarded as affine symmetric spaces. If M = G / H is a symmetric space, then Nomizu showed that there is a G-invariant torsion-free affine connection (i...

espaces fibrés différentiables". Comptes rendus de l'Académie des Sciences. 224: 1611–1612. Ehresmann, Charles (1955). "Les prolongements d'un espace...

supremum of coefficients), and the polydisc plays a role analogous to that of affine n-space in algebraic geometry. Points on the polydisc are defined to be...

Euclidean lines include the affine transformations, and the symmetries of hyperbolic lines include the Möbius transformations. The affine transformations and...

Connection. His subsequent research involved using intrinsically defined affine and Weylian connections to study the invariants of differential systems...

time a discrete group acts simply transitively on the triangles in the affine Bruhat–Tits building for SL3(Qp); in 1979 Mumford discovered the first example...

linear when applied to connections, is sometimes used (like the word affine – see Affine connection) to refer to connections defined on the tangent bundle...

x − y ) {\displaystyle d(x,y)=p(x-y)} . This is a convex function of an affine function of x {\displaystyle x} (in particular, a translation), and therefore...

{n}{2}}+1)^{2}}}} where Γ {\displaystyle \Gamma } is the Gamma function. By affine invariance, any ellipsoid has the same Mahler volume. The polar body of...

de Riemann et les espaces à torsion." C. R. Acad. Sci. (Paris) 174, 593–595 (1922); Élie Cartan. "Sur les variétés à connexion affine et la théorie de...

precisely, the space of the isomorphism classes of spin structures is an affine space over H1(M,Z2). Intuitively, for each nontrivial cycle on M a spin...

Monde.fr (in French). 6 April 2018. Retrieved 12 April 2018. "En marche ! Espace personel". En Marche !. 2016. Archived from the original on 9 January 2017...

allowed to have singularities. Stein spaces are the analogues of affine varieties or affine schemes in algebraic geometry. If the univalent domain on C n...

Lebesgue covering theorem. The Lebesgue covering dimension coincides with the affine dimension of a finite simplicial complex. The covering dimension of a normal...

homogenes dans les espaces cosmogoniques, Comptes rendus de l’Acad ́emie des Sciences, 206, 1086–1088 (in French) 1938 Les espaces des paths generalises...