Results 21 to 30 of about 11,999 (257)
Invariants of Surfaces in Three-Dimensional Affine Geometry
, 2021 Using the method of moving frames, we analyze the algebra of differential invariants for surfaces in three-dimensional affine geometry. For elliptic, hyperbolic, and parabolic points, we show that if the algebra of differential invariants is non-trivial,
Valiquette, Francis, Arnaldsson, Örn
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Symmetries of parabolic geometries
Differential Geometry and its Applications, 2009 We generalize the concept of affine locally symmetric spaces for parabolic geometries. We discuss mainly $|1|$--graded geometries and we show some restrictions on their curvature coming from the existence of symmetries. We use the theory of Weyl structures to discuss more interesting $|1|$--graded geometries which can carry a symmetry in a point with ...
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Remarks on parabolic character sheaves
, 2011 The paper contains comments on the parabolic character sheaves associated to a connected reductive group G, introduced by Lusztig in [L2]. A correspondence is established between parabolic character sheaves and certain perverse sheaves on G, equivariant ...
Springer, T.A. +2 more
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Existence of a Smooth Hamiltonian Circle Action near Parabolic Orbits and Cuspidal Tori [PDF]
, 2021 We show that every parabolic orbit of a two-degree-of-freedom integrable system admits a $$C^{\infty}$$-smooth Hamiltoniancircle action, which is persistent under small integrable $$C^{\infty}$$ perturbations.We deduce from this result the structural ...
Elena A. Kudryavtseva +3 more
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Tractor calculi for parabolic geometries [PDF]
Transactions of the American Mathematical Society, 2001 Parabolic geometries may be considered as curved analogues of the homogeneous spaces G / P
Cap, Andreas, Gover, A R
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Geometry and conservation laws for a class of second-order parabolic equations I: geometry
, 2020 I consider the geometry of the general class of scalar 2nd-order differential equations with parabolic symbol, including non-linear and non-evolutionary parabolic equations.
McMillan, B.B.
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Lightweight conical components for rotational parabolic domes: geometric definition, structural behaviour, optimisation and digital fabrication [PDF]
, 2016 Although initially intended for academic purposes, the research shown in this paper was drawn towards the development of hollow lightweight conical com-ponents to materialise rotational parabolic domes.
Adriaenssens, S. (Coordinador) +6 more
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Geometry and Ergodic Theory of Parabolic Meromorphic Functions [PDF]
Journal of Nonlinear Mathematical Physics, 2022 AbstractLetfbe a parabolic transcendental meromorphic function with positive and finite order$$\rho$$ρand its derivative satisfies some growth conditions. In this paper, we show the existence of conformal measures and use this basic tool to illustrate both geometrical and dynamical features of the radial Julia set.
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A Model of Porous Catalyst Accounting for Incipiently Non-isothermal Effects*
, 1999 An approximate model accounting for incipiently non-isothermal effects is derived from a well-known model of porous catalyst for appropriate, realistic limiting values of the parameters.
Vega de Prada, José Manuel +3 more
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Advanced Engineering Materials, EarlyView.This study explored how effective nickel aluminide coatings are obtained in providing oxidation resistance applied to the Inconel 738 alloy, modeling with diffusion models. In the present study, kinetics and thermal behavior of the Inconel 738 alloy were studied by the low‐temperature thermoreactive aluminizing process, which was carried out at 625°C ...
Gozde Celebi Efe +4 more
wiley +1 more source