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9 papers · 1 filter
Radar Signal Delay in the Dvali-Gabadadze-Porrati Gravity in the Vicinity of the Sun
Ioannis Haranas, Omiros Ragos, Ioannis Gkigkitzis
In this paper we examine the recently introduced Dvali Gabadadze Porrati gravity model. We use the space time metric in which the local gravitation source dominates the metric over…
RadioAstron -- a Telescope with a Size of 300 000 km: Main Parameters and First Observational Results
N. S. Kardashev, V. V. Khartov, RadioAstron collaboration
The Russian Academy of Sciences and Federal Space Agency, together with the participation of many international organizations, worked toward the launch of the RadioAstron orbiting…
The immaculate basis of the non-commutative symmetric functions
Chris Berg, Nantel Bergeron, Franco Saliola +2
FPSAC 2013 Extended Abstract. We introduce a new basis of the non-commutative symmetric functions whose elements have Schur functions as their commutative images. Dually, we build…
Satellite motion in a non-singular gravitational potential
Ioannis Haranas, Spiros Pagiatakis
We study the effects of a non singular gravitational potential on satellite orbits by deriving the corresponding time rates of change of its orbital elements. This is achieved by e…
Elliptical Insights: Understanding Statistical Methods through Elliptical Geometry
Michael Friendly, Georges Monette, John Fox
Visual insights into a wide variety of statistical methods, for both didactic and data analytic purposes, can often be achieved through geometric diagrams and geometrically based s…
A Measure of Decision Flexibility
Ross D. Shachter, Marvin Mandelbaum
We propose a decision-analytical approach to comparing the flexibility of decision situations from the perspective of a decision-maker who exhibits constant risk-aversion over a mo…