Results 61 to 70 of about 5,615,400 (187)

A new entropy estimator and its application to goodness of fit test for Weibull distribution [PDF]

Journal of Mahani Mathematical Research
In this article, we introduce a new estimator of entropy of continuous random variable. Bias, variance and the mean squared error of the new estimator are obtained and compared with the other existing estimators.
Sayed Qasim Alavi, Hadi Alizadeh Noughabi, Sarah Jomhoori   +2 more
doaj   +1 more source

Quantum critical points of Helical Fermi Liquids

, 2010
Following our previous work, we study the quantum phase transitions which spontaneously develop ferromagnetic spin order in helical fermi liquids which breaks continuous spin-space rotation symmetry, with application to the edge states of 3d topological ...
Cenke Xu, E. I. Rashba
core   +1 more source

Wild Recurrent Critical Points [PDF]

Journal of the London Mathematical Society, 2005
It is conjectured that a rational map whose coefficients are algebraic over $\Q_p$ has no wandering components of the Fatou set. R. Benedetto has shown that any counter example to this conjecture must have a wild recurrent critical point. We provide here the first examples of rational maps whose coefficients are algebraic over $\Q_p$ and that have a ...
openaire   +3 more sources

Entanglement Structure of Deconfined Quantum Critical Points

, 2011
We study the entanglement properties of deconfined quantum critical points. We show not only that these critical points may be distinguished by their entanglement structure but also that they are in general more highly entangled that conventional ...
A. B. Zomolodchikov, Brian Swingle, T. Senthil   +2 more
core   +1 more source

Seasonal Morphological and Biochemical Variation of Coffea canephora Pierre ex A. Froehner (Rubiaceae) Leaves of Early, Intermediate and Late Maturing Genotypes

Plants
Understanding the growth patterns of genotypes optimizes their selection and management. The objective of this study is to investigate the seasonal variations in the morphology and biochemistry of Coffea canephora clone leaves, considering climatic ...
Jeane Crasque, Jean Marcel Sousa Lira, Giuseppe Tognere Polonini, Thiago Corrêa de Souza, Edilson Romais Schmildt, Lúcio de Oliveira Arantes, Sara Dousseau-Arantes   +6 more
doaj   +1 more source

Critical points of Wang-Yau quasi-local energy

, 2011
In this paper, we prove the following theorem regarding the Wang-Yau quasi-local energy of a spacelike two-surface in a spacetime: Let $\Sigma$ be a boundary component of some compact, time-symmetric, spacelike hypersurface $\Omega$ in a time-oriented ...
C.-C.M. Liu, C.-C.M. Liu, D. Gilbarg, G. Huisken, H. Bray, J.D. Brown, L. Nirenberg, L.-H. Huang, Luen-Fai Tam, M.-T. Wang, M.-T. Wang, Naqing Xie, P. Miao, P. Miao, P. Miao, Pengzi Miao, R.C. Reilly, Y.-G. Shi   +17 more
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Excitation and Entanglement Transfer Near Quantum Critical Points

, 2006
Recently, there has been growing interest in employing condensed matter systems such as quantum spin or harmonic chains as quantum channels for short distance communication.
A. Osterloh, B. M. McCoy, E. Lieb, J. Eisert, M. B. Plenio, M. B. Plenio, M. E. Reuter, M. J. Hartmann, M. J. Hartmann, S. Sachdev, S. Östlund   +10 more
core   +1 more source

Pairs of paths and critical points

International Journal of Mathematics and Mathematical Sciences, 2001
Two sufficient conditions are presented, in terms of the values taken by a holomorphic function f(z) on a pair of smooth paths intersecting at a point z0 in its domain, implying that f′(z0)=0.
Florin Caragiu, Ioana Caragiu
doaj   +1 more source

Protecting clean critical points by local disorder correlations

, 2011
We show that a broad class of quantum critical points can be stable against locally correlated disorder even if they are unstable against uncorrelated disorder.
Hoyos, J. A., Laflorencie, Nicolas, Vieira, A. P., Vojta, Thomas   +3 more
core   +1 more source

Infinitely many periodic solutions of nonlinear wave equations on $S^n$

Electronic Journal of Differential Equations, 2009
The existence of time periodic solutions of nonlinear wave equations $$ u_{tt} - Delta_n u + ig(frac{n-1}{2}ig)^2u= g(u) - f(t, x) $$ on $n$-dimensional spheres is considered. The corresponding functional of the equation is studied by the convexity
Jintae Kim
doaj