منابع مشابه
Discrete Calculus of Variation for Homographic Configurations in Celestial Mechanics
We provide in this paper the discrete equations of motion for the newtonian n-body problem deduced from the quantum calculus of variations (Q.C.V.) developed in [3, 4, 7, 8]. These equations are brought into the usual lagrangian and hamiltonian formulations of the dynamics and yield sampled functional equations involving generalized scale derivatives. We investigate especially homographic solut...
متن کاملCelestial mechanics.
Albouy, Alain (Paris, France) Belbruno, Ed (Princeton, USA) Buck, Gregory (Saint Anselm College, USA) Chenciner, Alain (Paris, France) Corbera, Montserrat (Universitat de Vic, Spain) Cushman, Richard (Utrecht, Holland and Calgary, Canada) Diacu, Florin (Victoria, Canada) Gerver, Joseph (Rutgers, USA) Hampton, Marshall (Minneapolis, USA) Kotsireas, Ilias (Wilfried Laurier, Waterloo, Canada) Laco...
متن کاملThe Motion of Celestial Bodies
The history of celestial mechanics is first briefly surveyed, identifying the major contributors and their contributions. The Ptolemaic and Copernican world models, Kepler’s laws of planetary motion and Newton’s laws of universal gravity are presented. It is shown that the orbit of a body moving under the gravitational attraction of another body can be represented by a conic section. The six or...
متن کاملWhen Geometry Constrains Vision: Systematic Misperceptions within Geometrical Configurations.
How accurate are we in reproducing a point within a simple shape? This is the empirical question we addressed in this work. Participants were presented with a tiny disk embedded in an empty circle (Experiment 1 and 3) or in a square (Experiment 2). Shortly afterwards the disk vanished and they had to reproduce the previously seen disk position within the empty shape by means of the mouse cursor...
متن کاملRelating requirements and feature configurations: a systematic approach
A feature model captures various possible configurations of products within a product family. When configuring a product, several features are selected and composed. Selecting features at the program level has a general limitation of not being able to relate the resulting configuration to its requirements. As a result, it is difficult to decide whether a given configuration of features is optim...
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ژورنال
عنوان ژورنال: Ars Mathematica Contemporanea
سال: 2013
ISSN: 1855-3974,1855-3966
DOI: 10.26493/1855-3974.346.1ec