Search results for "Real analytic geometry"

showing 3 items of 3 documents

Differentiability properties of the isoperimetric profile and topology of analytic Riemannian manifolds.

2009

Abstract: We show that smooth isoperimetric profiles are exceptional for real analytic Riemannian manifolds. For instance, under some extra assumptions, this can happen only on topological spheres

Riemannian Geometry Real Analytic Geometry.
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Semianalyticity of isoperimetric profiles

2009

It is shown that, in dimensions $<8$, isoperimetric profiles of compact real analytic Riemannian manifolds are semi-analytic.

Mathematics - Differential Geometry0209 industrial biotechnologyRiemannian Geometry Real Analytic Geometry Geometric measure Theory Metric Geometry Geometric Analysis.Calibration (statistics)02 engineering and technologyAstrophysics::Cosmology and Extragalactic Astrophysics01 natural sciencessymbols.namesake020901 industrial engineering & automationFOS: MathematicsMathematics::Metric GeometryMorse theory0101 mathematicsMathematics::Symplectic GeometryIsoperimetric inequalityMorse theoryMathematicsRiemann surface010102 general mathematicsMathematical analysis53C20;49Q20;14P15;32B20Differential Geometry (math.DG)Computational Theory and Mathematics[MATH.MATH-DG]Mathematics [math]/Differential Geometry [math.DG]Riemann surfaceCalibrationsymbolsGeometry and TopologyMathematics::Differential GeometryIsoperimetric inequalityAnalysis
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Quantifier elimination in the quasi-analytic framework

2012

We associate to every compact polydisk B [belonging to ] Rn an algebra CB of real functions defined in a neighborhood of B. The collection of these algebras is supposed to be closed under several operations, such as composition and partial derivatives. Moreover, if the center of B is the origin, we assume that the algebra of germs at the origin of elements of CB is quasianalytic (it does not contain any flat germ). We define with these functions the collection of C-semianalytic and C-subanalytic sets according to the classical process in real analytic geometry. Our main result is an analogue of Tarski-Seidenberg's usual result for these sets. It says that the sub-C-subanalytic sets may be d…

[MATH.MATH-GM]Mathematics [math]/General Mathematics [math.GM]Tarsk-Seidenberg theoremThéorème de Tarski-SeidenbergAlgèbres quasianalytiques[ MATH.MATH-GM ] Mathematics [math]/General Mathematics [math.GM]Real analytic geometryQuasianalytic algebrasThéorème de préparationStructures o-minimales[MATH.MATH-GM] Mathematics [math]/General Mathematics [math.GM]O-minimal structuresPreparation theoremGéométrie analytique réelle
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