Results 251 to 260 of about 199,378 (307)
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Fundamental and Applied Aspects of Modern Physics, 2000
Early attempts at constructing realistic models for the weak interaction between elementary particles were off-set by the emergence of infinite, hence meaningless, expressions when one tried to derive the radiative corrections. When models based on gauge theories with Higgs mechanism were discovered to be renormalizable, the bothersome infinities ...
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Early attempts at constructing realistic models for the weak interaction between elementary particles were off-set by the emergence of infinite, hence meaningless, expressions when one tried to derive the radiative corrections. When models based on gauge theories with Higgs mechanism were discovered to be renormalizable, the bothersome infinities ...
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Null infinity, the BMS group and infrared issues
General Relativity and Gravitation, 2018There has been a recent resurgence of interest in the structure of the gravitational field at null infinity, sparked by new results on soft charges and infrared issues related to the S matrix theory in perturbative quantum gravity.
A. Ashtekar +2 more
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Monatshefte f�r Mathematik, 2000
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Journal of Logic and Computation, 2011
It is shown that within the language of Set Theory, if membership is assumed to be non-well-founded à la Aczel, then one can state the existence of infinite sets by means of an ∃∃∀∀ prenex sentence. Somewhat surprisingly, this statement of infinity is essentially the one which was proposed in 1988 for well-founded sets, and it is satisfied exclusively
Eugenio G. Omodeo +2 more
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It is shown that within the language of Set Theory, if membership is assumed to be non-well-founded à la Aczel, then one can state the existence of infinite sets by means of an ∃∃∀∀ prenex sentence. Somewhat surprisingly, this statement of infinity is essentially the one which was proposed in 1988 for well-founded sets, and it is satisfied exclusively
Eugenio G. Omodeo +2 more
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Bifurcation of limit cycles at infinity in piecewise polynomial systems
Nonlinear Analysis: Real World Applications, 2018In this paper, we study bifurcation of limit cycles from the equator of piecewise polynomial systems with no singular points at infinity. We develop a method for computing the Lyapunov constants at infinity of piecewise polynomial systems. In particular,
Ting Chen +3 more
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International Journal of Theoretical Physics, 1999
The author considers a dynamical system consisting of infinite number of rigid bodies of arbitrary size and subject to mutual elastic collisions alone, without any gravitational interaction. The author obtains a solution for equations of Newtonian mechanics which becomes unbounded in a finite time (a process called here escape to infinity.
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The author considers a dynamical system consisting of infinite number of rigid bodies of arbitrary size and subject to mutual elastic collisions alone, without any gravitational interaction. The author obtains a solution for equations of Newtonian mechanics which becomes unbounded in a finite time (a process called here escape to infinity.
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2006 International Conference on Computational Inteligence for Modelling Control and Automation and International Conference on Intelligent Agents Web Technologies and International Commerce (CIMCA'06), 2006
Chaos is the order of nature. Nature is characterized by its chaotic variables and processes. These variables and processes are described by numbers and words. Numbers in classical mathematics are static and rigid. However, nature is dynamic and evolutionary.
Chefi Ketata +2 more
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Chaos is the order of nature. Nature is characterized by its chaotic variables and processes. These variables and processes are described by numbers and words. Numbers in classical mathematics are static and rigid. However, nature is dynamic and evolutionary.
Chefi Ketata +2 more
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Structure at infinity for shrinking Ricci solitons
Annales Scientifiques de l'Ecole Normale Supérieure, 2016The paper mainly concerns the structure at infinity for complete gradient shrinking Ricci solitons. It is shown that for such a soliton with bounded curvature, if the round cylinder $\mathbb{R}\times \mathbb{S}^{n-1}/\Gamma$ occurs as a limit for a ...
Ovidiu Munteanu, Jiaping Wang
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2009
La relazione affronta il tema dell'infinito considerando, prima il suo sviluppo storico dalla Grecia antica fino alla sua sistemazione teorica contemporanea. Dopo aver presentato ii tema dell'infinito come Sapere storico e culturale si analizza il problema del suo insegnamento e apprrendimento concentrandosi sugli ostacoli epistemologici e didattici ...
Arrigo G. +2 more
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La relazione affronta il tema dell'infinito considerando, prima il suo sviluppo storico dalla Grecia antica fino alla sua sistemazione teorica contemporanea. Dopo aver presentato ii tema dell'infinito come Sapere storico e culturale si analizza il problema del suo insegnamento e apprrendimento concentrandosi sugli ostacoli epistemologici e didattici ...
Arrigo G. +2 more
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HOPOS: The Journal of the International Society for the History of Philosophy of Science, 2014
ISSN:2152 ...
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ISSN:2152 ...
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