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Relevant bibliographies by topics / Quasi-Alpha

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Journal articles

Academic literature on the topic 'Quasi-Alpha'

Author: Grafiati

Published: 18 May 2024

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Journal articles on the topic "Quasi-Alpha"

1

KOWALSKI, ZBIGNIEW S. "Quasi-Markovian transformations." Ergodic Theory and Dynamical Systems 17, no. 4 (1997): 885–97. http://dx.doi.org/10.1017/s0143385797086264.

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Let $(f,\alpha)$ be the process given by an endomorphism $f$ and by a finite partition $\alpha=\{A\}_{i=1}^{s}$ of a Lebesgue space. Let $E(f,\alpha)$ be the set of densities of absolutely continuous invariant measures for skew products with the base $(f,\alpha)$. We prove that a process $(f,\alpha)$ is Markovian if and only if $E(f,\alpha)\subset \{g: g=\sum_{i=1}^{s} 1_{A_{i}}\otimes g_{i}\}$. If $f$ is the Lasota–Yorke or Misiurewicz type map with the Markovian partition $\alpha$, then $(f,\alpha)$ is quasi-Markovian, i.e. $E(f,\alpha)\subset \{g:\supp g=\bigcup_{i=1}^{s} A_{i}\times B_{i}\}$. Moreover, we give the characterization of quasi-Markovian processes.

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2

Patrick Udoudo, Unyime, and Ette Harrison Etuk. "Alpha power transformed quasi lindley distribution." International Journal of Advanced Statistics and Probability 9, no. 1 (2021): 6. http://dx.doi.org/10.14419/ijasp.v9i1.31208.

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In this study, we proposed and studied the alpha power transformed quasi Lindley distribution. The new model has three sub models, namely, Lindley, quasi Lindley and alpha power transformed Lindley distributions. The pdf, hazard rate function, quantile function, mo-ments, Rényi entropy, stochastic ordering and distributions of order statistics were derived based on the new model. The maximum like-lihood method of estimating the model parameters was considered. A simulation study was conducted to investigate the behavior of the maximum likelihood estimates. It was observed that the average bias and mean squared error decreased as the sample size increased. By analyzing a real data set, we illustrated the usefulness of the proposed distribution.

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3

Noor, Khalida Inayat. "Some classes of alpha-quasi-convex functions." International Journal of Mathematics and Mathematical Sciences 11, no. 3 (1988): 497–501. http://dx.doi.org/10.1155/s0161171288000584.

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LetC[C,D],−1≤D<C≤1denote the class of functionsg,g(0)=0,g′(0)=1, analytic in the unit diskEsuch that(zg′(z))′g′(z)is subordinate to1+CZ1+DZ,z∈E. We investigate some classes of Alpha-Quasi-Convex Functionsf, withf(0)=f′(0)−1=0for which there exists ag∈C[C,D]such that(1−α)f′(z)g′(z)+α(zf′(z))′g′(z)is subordinate to1+AZ1+BZ′,−1≤B<A≤1. Integral representation, coefficient bounds are obtained. It is shown that some of these classes are preserved under certain integral operators.

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4

Abdel-Gawad, H. R. "On the Fekete-Szego problem for alpha-quasi-convex functions." Tamkang Journal of Mathematics 31, no. 4 (2000): 251–56. http://dx.doi.org/10.5556/j.tkjm.31.2000.381.

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5

Meftah, B., and A. Souahi. "Cebyšev inequalities for co-ordinated \(QC\)-convex and \((s,QC)\)-convex." Engineering and Applied Science Letters 4, no. 1 (2021): 14–20. http://dx.doi.org/10.30538/psrp-easl2021.0057.

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In this paper, we establish some new Cebyšev type inequalities for functions whose modulus of the mixed derivatives are co-ordinated quasi-convex and \(\alpha \)-quasi-convex and \(s\)-quasi-convex functions.

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6

Royer, G. "Alpha emission and spontaneous fission through quasi-molecular shapes." Journal of Physics G: Nuclear and Particle Physics 26, no. 8 (2000): 1149–70. http://dx.doi.org/10.1088/0954-3899/26/8/305.

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7

Mahmood, Shahid, Sarfraz Nawaz Malik, Sumbal Farman, S. M. Jawwad Riaz, and Shabieh Farwa. "Uniformly Alpha-Quasi-Convex Functions Defined by Janowski Functions." Journal of Function Spaces 2018 (2018): 1–7. http://dx.doi.org/10.1155/2018/6049512.

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In this work, we aim to introduce and study a new subclass of analytic functions related to the oval and petal type domain. This includes various interesting properties such as integral representation, sufficiency criteria, inclusion results, and the convolution properties for newly introduced class.

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8

Littin Curinao, Jorge. "Asymptotic behavior and quasi-limiting distributions on time-fractional birth and death processes." Journal of Applied Probability 59, no. 4 (2022): 1199–227. http://dx.doi.org/10.1017/jpr.2022.14.

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AbstractIn this article we provide new results for the asymptotic behavior of a time-fractional birth and death process $N_{\alpha}(t)$ , whose transition probabilities $\mathbb{P}[N_{\alpha}(t)=\,j\mid N_{\alpha}(0)=i]$ are governed by a time-fractional system of differential equations, under the condition that it is not killed. More specifically, we prove that the concepts of quasi-limiting distribution and quasi-stationary distribution do not coincide, which is a consequence of the long-memory nature of the process. In addition, exact formulas for the quasi-limiting distribution and its rate convergence are presented. In the first sections, we revisit the two equivalent characterizations for this process: the first one is a time-changed classic birth and death process, whereas the second one is a Markov renewal process. Finally, we apply our main theorems to the linear model originally introduced by Orsingher and Polito [23].

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9

Nicolopoulos, Anouk, Martin Campos Pinto, Bruno Després, and Patrick Ciarlet. "Degenerate elliptic equations for resonant wave problems." IMA Journal of Applied Mathematics 85, no. 1 (2020): 132–59. http://dx.doi.org/10.1093/imamat/hxaa001.

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Abstract The modelling of resonant waves in 2D plasma leads to the coupling of two degenerate elliptic equations with a smooth coefficient $\alpha $ and compact terms. The coefficient $\alpha $ changes sign. The region where $\{\alpha&gt;0\}$ is propagative, and the region where $\{\alpha &lt;0\}$ is non propagative and elliptic. The two models are coupled through the line $\varSigma =\{\alpha =0\}$. Generically, it is an ill-posed problem and additional information must be introduced to get a satisfactory treatment at $\varSigma $. In this work, we define the solution by relying on the limiting absorption principle ($\alpha $ is replaced by $\alpha +i0^+$) in an adapted functional setting. This setting lies on the decomposition of the solution in a regular and a singular part, which originates at $\varSigma $, and on quasi-solutions. It leads to a new well-posed mixed variational formulation with coupling. As we design explicit quasi-solutions, numerical experiments can be carried out, which illustrate the good properties of this new tool for numerical computation.

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10

Basar, E., and M. Schurmann. "Alpha Rhythms in the Brain: Functional Correlates." Physiology 11, no. 2 (1996): 90–96. http://dx.doi.org/10.1152/physiologyonline.1996.11.2.90.

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Experimental evidence suggests a functional significance of electroencephalographic (EEG) alpha rhythms. Event-related, evoked, and induced alpha rhythms may have functional correates in primary sensory processing and preparatory processes. These results are in accord with the view that spontaneous and induced EEG alpha rhythms have quasi-deterministic properties.

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