نتایج جستجو برای: elementary function
تعداد نتایج: 1257698 فیلتر نتایج به سال:
In previous papers we have reported successful laboratory implementations of a family of juggling algorithms. In all but the one degree of freedom case, these empirically successful algorithms have so far resisted our analytical efforts to explain why they work. This is in large measure a consequence of our inability to write down using elementary functions an expression for the closed loop dyn...
For r ≥ 3, p ≥ 2, we classify all actions of the groups Diffc(R) and Diff+(S) by Cdiffeomorphisms on the line and on the circle. This is the same as describing all nontrivial group homomorphisms between groups of compactly supported diffeomorphisms on 1-manifolds. We show that all such actions have an elementary form, which we call topologically diagonal. As an application, we answer a question...
Lorentz violation at high energies might lead to non linear dispersion relations for the fundamental particles. We analyze observational constraints on these without assuming any a priori equality between the coefficients determining the amount of Lorentz violation for different particle species. We focus on constraints from three high energy processes involving photons and electrons: photon de...
The covariant regularization of the contributions of fundamental particles to the vacuum energy density is implemented in the Pauli-Villars, dimensional regularization, and Feynman regulator frameworks. Rules of correspondence between dimensional regularization and cutoff calculations are discussed. Invoking the scale invariance of free field theories in the massless limit, as well as consisten...
The number d φ is called the field dimension of the free field φ(x). Its value (7.4) is a direct consequence of the naive dimensional properties of x and φ. In the units used in this text, in which we have set kBT = 1 [recall the convention stated before Eq. (2.6)], the exponential in the partition function is e, so that E[φ] is a dimensionless quantity. The coordinates have the dimension of a ...
The number d φ is called the field dimension of the free field φ(x). Its value (7.4) is a direct consequence of the naive dimensional properties of x and φ. In the units used in this text, in which we have set kBT = 1 [recall the convention stated before Eq. (2.6)], the exponential in the partition function is e, so that E[φ] is a dimensionless quantity. The coordinates have the dimension of a ...
The Wigner distribution (WD) can be decomposed into a linear combination of elementary WDs. Slow-oscillatory elementary WDs and fast-oscillatory elementary WDs mainly contribute to auto-terms and cross-terms, respectively. Using a weight function to keep slow-oscillatory elementary WDs and attenuate fast-oscillatory elementary WDs, one can balance auto-term resolution and cross-term suppression...
airway mucus hypersecretion health effects caused by air pollutants may range from subtle biochemical or physiological signs, such as mildly reduced lung function, to difficult breathing, wheezing, coughing and exacerbation of existing respiratory conditions such as asthma. the aim of this study was measuring the adverse health effects of air pollution on lung function of primary school student...
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