منابع مشابه
On Néron Models, Divisors and Modular Curves
For p a prime number, let X0(p)Q be the modular curve, over Q, parametrizing isogenies of degree p between elliptic curves, and let J0(p)Q be its jacobian variety. Let f : X0(p)Q → J0(p)Q be the morphism of varieties over Q that sends a point P to the class of the divisor P − ∞, where ∞ is the Q-valued point of X0(p)Q that corresponds to PQ with 0 and ∞ identified, equipped with the subgroup sc...
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Eighteen junior elite figure skaters were filmed while performing axel and double axel jumps. These same skaters were assessed for strength of the shoulders, knees, and hips at multiple angular velocities using a Cybex II system. The height of the jumps was significantly correlated with the strength data. Knee extension at 240 deg/sec and shoulder abduction at 300 deg/sec were shown to be the m...
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The maximal height attained in a vertical jump is heavily influenced by the execution of a large countermovement prior to the upward motion. When a jump must be executed without a countermovement, as in a squat jump, the maximal jump height is reduced. During such conditions, the human body may use other strategies in order to increase performance. The purpose of this research was to investigat...
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— In this note, we present the theorem of extension of birational group laws in both settings of classical varieties (Weil) and schemes (Artin). We improve slightly the original proof and result with a more direct construction of the group extension, a discussion of its separation properties, and the systematic use of algebraic spaces. We also explain the important application to the constructi...
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Regarding the effects of the kinematics of the movement on athletic performance and the Importance of promoting athlete’s performance on the sport fields, there is limited knowledge about the mechanism of the effect of different variables of volleyball spike. Therefore, the aim of this study was the prediction of jump performance in elite female volleyball players with selected kinematic variab...
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ژورنال
عنوان ژورنال: Transactions of the American Mathematical Society
سال: 2017
ISSN: 0002-9947,1088-6850
DOI: 10.1090/tran/7087