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v
t
e
Riemannian geometry is the branch of differential geometry that studies Riemannian manifolds, defined as smooth manifolds with a Riemannian metric (an inner product on the tangent space at each point that varies smoothly from point to point). This gives, in particular, local notions of angle, length of curves, surface area and volume. From those, some other global quantities can be derived by integrating local contributions.
Riemannian geometry originated with the vision of Bernhard Riemann expressed in his inaugural lecture "Ueber die Hypothesen, welche der Geometrie zu Grunde liegen" ("On the Hypotheses on which Geometry is Based").[1] It is a very broad and abstract generalization of the differential geometry of surfaces in R3. Development of Riemannian geometry resulted in synthesis of diverse results concerning the geometry of surfaces and the behavior of geodesics on them, with techniques that can be applied to the study of differentiable manifolds of higher dimensions. It enabled the formulation of Einstein's general theory of relativity, made profound impact on group theory and representation theory, as well as analysis, and spurred the development of algebraic and differential topology.
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and 25 Related for: Riemannian geometry information
Riemanniangeometry is the branch of differential geometry that studies Riemannian manifolds, defined as smooth manifolds with a Riemannian metric (an...
In differential geometry, a Riemannian manifold or Riemannian space (M, g), so called after the German mathematician Bernhard Riemann, is a real, smooth...
example, in Riemanniangeometry distances and angles are specified, in symplectic geometry volumes may be computed, in conformal geometry only angles...
mathematical field of Riemanniangeometry, the fundamental theorem of Riemanniangeometry states that on any Riemannian manifold (or pseudo-Riemannian manifold) there...
and Bernhard Riemann leading to non-Euclidean geometry and Riemanniangeometry. In Euclidean geometry, a figure can be scaled up or scaled down indefinitely...
. In Riemanniangeometry and pseudo-Riemanniangeometry: Let ( M , g ) {\displaystyle (M,g)} and ( N , h ) {\displaystyle (N,h)} be Riemannian manifolds...
This is a glossary of some terms used in Riemanniangeometry and metric geometry — it doesn't cover the terminology of differential topology. The following...
This is a list of formulas encountered in Riemanniangeometry. Einstein notation is used throughout this article. This article uses the "analyst's" sign...
differential geometry of surfaces deals with the differential geometry of smooth surfaces with various additional structures, most often, a Riemannian metric...
Riemannian manifolds. It assigns a tensor to each point of a Riemannian manifold (i.e., it is a tensor field). It is a local invariant of Riemannian metrics...
constant. Geodesics are commonly seen in the study of Riemanniangeometry and more generally metric geometry. In general relativity, geodesics in spacetime describe...
The symplectic form in symplectic geometry plays a role analogous to that of the metric tensor in Riemanniangeometry. Where the metric tensor measures...
manifolds and Riemanniangeometry. Later in the 19th century, it appeared that geometries without the parallel postulate (non-Euclidean geometries) can be developed...
metric is a Riemannian manifold, one with an indefinite metric is a pseudo-Riemannian manifold. Thus, isometries are studied in Riemanniangeometry. A local...
differential geometry, the Ricci curvature tensor, named after Gregorio Ricci-Curbastro, is a geometric object which is determined by a choice of Riemannian or...
known for his contributions to the fields of geometric analysis, Riemanniangeometry, and geometric topology. In 2005, Perelman abruptly quit his research...
structures is sometimes termed Möbius geometry, and is a type of Klein geometry. A conformal manifold is a pseudo-Riemannian manifold equipped with an equivalence...
often occur in fields such as calculus, differential equations and Riemanniangeometry. In the theory of differential equations, comparison theorems assert...
In mathematics, specifically differential geometry, the infinitesimal geometry of Riemannian manifolds with dimension greater than 2 is too complicated...
combining analysis with geometry. These would subsequently become major parts of the theories of Riemanniangeometry, algebraic geometry, and complex manifold...
manifolds, which are Riemannian manifolds whose points correspond to probability distributions. Historically, information geometry can be traced back to...
described by linear fractional transformations in each case. In Riemanniangeometry, two Riemannian metrics g {\displaystyle g} and h {\displaystyle h} on a...
: 35 Riemanniangeometry is the branch of differential geometry that studies Riemannian manifolds, defined as smooth manifolds with a Riemannian metric...
and the geometry of complete Riemannian manifolds. Journal of Differential Geometry. 17 (1982), no. 1, 15–53. On the Hodge theory of Riemannian pseudomanifolds...