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Quantifier elimination for elementary geometry and elementary affine geometry
(Wiley VCH Verlag, 2012-11)
We introduce new first-order languages for the elementary n-dimensional geometry and elementary n-dimensional affine geometry (n ≥ 2), based on extending FO(β≡) and FO(β), respectively, with new function symbols. Here, β ...
Differential geometry of grassmannians and the Plucker map
(VERSITAWARSAW, 2012)
Using the Plucker map between grassmannians, we study basic aspects of classic grassmannian geometries. For 'hyperbolic' grassmannian geometries, we prove some facts (for instance, that the Plucker map is a minimal isometric ...
The Geometry of Locally Symmetric Affine Surfaces
(Springer, 2018-03)
We examine the local geometry of affine surfaces which are locally symmetric. There are six non-isomorphic local geometries. We realize these examples as type A, type B, and type C geometries using a result of Opozda and ...
Relativistic quantum geometry from a 5D geometrical vacuum: Gravitational waves from preinflation
(Elsevier B.V., 2019-09)
In this work we introduce Relativistic Quantum Geometry (RQG) on a Modern Kaluza–Klein theory by studying the boundary conditions on a extended Einstein–Hilbert action for a 5D vacuum defined on a 5D (background) Riemannian ...
Characterization of PSD of activated carbons by using slit and triangular pore geometries
(Elsevier Science, 2010-06)
A mixed geometry model for activated carbons, representing the porous space as a collection of an undetermined proportion of slit and triangular pores, is developed, evaluated theoretically and applied to the characterization ...
Analysis of the Spb method for geometries where ηpl depends on a/W
(Elsevier, 2021-01)
Since its proposal, the simplified Spb method has been successfully applied to the fracture toughness evaluation of metallic and polymer materials. However, some points of this methodology remain unclear, like the applicability ...
Time-resolved luminescence studies in hydrogen uranyl phosphate intercalated with amines
(Elsevier Science BvAmsterdamHolanda, 2007)
Decay of geometry for Fibonacci critical covering maps of the circle
(GAUTHIER-VILLARS/EDITIONS ELSEVIER, 2009)
We study the growth of Df `` (f(c)) when f is a Fibonacci critical covering map of the circle with negative Schwarzian derivative, degree d >= 2 and critical point c of order l > 1. As an application we prove that f exhibits ...
Effect of Abutment Geometry and Luting Agents on the Vertical Marginal Discrepancy of Cast Copings on Implant Abutments: An in Vitro Study
(Hindawi, 2021)
Aim. Vertical marginal discrepancy (VMD) influences the success of implant-supported restorations. However, there is little literature that has investigated the influence of geometry and cementing agent on changes in VMD ...
Total absolute horospherical curvature of submanifolds in hyperbolic space
(WALTER DE GRUYTER & CO, 2010)
We study the horospherical geometry of submanifolds in hyperbolic space. The main result is a formula for the total absolute horospherical curvature of M, which implies, for the horospherical geometry, the analogues of ...