Articles with "exponent" as a keyword



Ground State Solutions for the Choquard Equation With the Lower Critical Exponent and Riesz Fractional Laplacian

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Published in 2025 at "Mathematical Methods in the Applied Sciences"

DOI: 10.1002/mma.10894

Abstract: In this study, we explore both the nonexistence and existence of a nonzero solution for the following Choquard equation (CE): −∆u+𝒱(ϰ)u=−∆D0−α2*|u|αN+1|u|αN−1u,inℝN,u∈H1ℝN, where α∈(0,N),N≥3,$$ \alpha \in \left(0,N\right),N\ge 3, $$ * represents the convolution within ℝN$$ {\mathbb{R}}^N… read more here.

Keywords: equation; riesz fractional; ground state; exponent ... See more keywords
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Bifurcation results for a fractional elliptic equation with critical exponent in $$\mathbb {R}^n$$Rn

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Published in 2017 at "manuscripta mathematica"

DOI: 10.1007/s00229-016-0878-3

Abstract: In this paper we study some nonlinear elliptic equations in $${\mathbb R}^n$$Rn obtained as a perturbation of the problem with the fractional critical Sobolev exponent, that is $$\begin{aligned} (-\Delta )^s u = \varepsilon \,h\,u_+^q + u_+^p… read more here.

Keywords: bifurcation results; fractional elliptic; results fractional; elliptic equation ... See more keywords

A Characterization of Superalgebras with Pseudoinvolution of Exponent 2

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Published in 2020 at "Algebras and Representation Theory"

DOI: 10.1007/s10468-020-09996-4

Abstract: Let A be a superalgebra endowed with a pseudoinvolution ∗ over an algebraically closed field of characteristic zero. If A satisfies an ordinary non-trivial identity, then its graded ∗-codimension sequence $c_{n}^{*}(A)$ , n = 1,2,…, is… read more here.

Keywords: superalgebras pseudoinvolution; exponent; pseudoinvolution exponent; characterization superalgebras ... See more keywords

Theoretical and numerical study of the blow up in a nonlinear viscoelastic problem with variable-exponent and arbitrary positive energy

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Published in 2021 at "Acta Mathematica Scientia"

DOI: 10.1007/s10473-022-0107-y

Abstract: In this paper, we consider the following nonlinear viscoelastic wave equation with variable exponents: $$u_{tt}-\Delta u+\int_{0}^{t} g(t-\tau)\Delta u(x,\tau)\rm{d}\tau+\mu u_{t}=\vert u\vert^{p(x)-2}u,$$ u t t − Δ u + ∫ 0 t g ( t − τ… read more here.

Keywords: energy; arbitrary positive; blow; theoretical numerical ... See more keywords

Choosing the Allometric Exponent in Covariate Model Building

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Published in 2018 at "Clinical Pharmacokinetics"

DOI: 10.1007/s40262-018-0667-0

Abstract: BackgroundAllometric scaling is often used to describe the covariate model linking total body weight (WT) to clearance (CL); however, there is no consensus on how to select its value.ObjectivesThe aims of this study were to… read more here.

Keywords: allometric exponent; covariate model; exponent; study ... See more keywords
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Lelong numbers of m-subharmonic functions

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Published in 2018 at "Journal of Mathematical Analysis and Applications"

DOI: 10.1016/j.jmaa.2018.06.055

Abstract: In this paper we study the existence of Lelong numbers of $m-$subharmonic currents of bidimension $(p,p)$ on an open subset of $\Bbb C^n$, when $m+p\geq n$. In the special case of $m-$subharmonic function $\varphi$, we… read more here.

Keywords: lelong numbers; numbers subharmonic; exponent; subharmonic functions ... See more keywords
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Postural stability assessment in flatfoot subjects trough lyapunov exponent analysis

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Published in 2021 at "European Journal of Public Health"

DOI: 10.1093/eurpub/ckab120.113

Abstract: Flatfoot subjects presents an increase plantar foot area related to a plantar pressure feedback impairment. The Lyapunov Exponent is considered a nonlinear parameter used to characterize a signal chaotic behavior measuring the information rate loss… read more here.

Keywords: lyapunov exponent; analysis; condition; exponent ... See more keywords

Critical exponent ν of the Ising model in three dimensions with long-range correlated site disorder analyzed with Monte Carlo techniques

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Published in 2020 at "Physical Review B"

DOI: 10.1103/physrevb.102.174206

Abstract: We study the critical behavior of the Ising model in three dimensions on a lattice with site disorder by using Monte Carlo simulations. The disorder is either uncorrelated or long-range correlated with correlation function that… read more here.

Keywords: exponent; range; long range; ensuremath ... See more keywords

Eulerian-Lagrangian scaling of the Lyapunov exponent in homogeneous turbulence

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Published in 2025 at "Physical Review Fluids"

DOI: 10.1103/zv93-zkkv

Abstract: We present a heuristic derivation of the maximal Lyapunov exponent $\gamma$ of homogeneous turbulence which yields two new relations, a sweeping relation and the scaling of the uncertainty field's integral length $L_{\Delta}$. These relations and… read more here.

Keywords: homogeneous turbulence; exponent; lyapunov exponent; lagrangian scaling ... See more keywords

Multiscale Structure Tensor for Improved Feature Extraction and Image Regularization

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Published in 2019 at "IEEE Transactions on Image Processing"

DOI: 10.1109/tip.2019.2924799

Abstract: Regularization methods are used widely in image selective smoothing and edge preserving restoration of noisy images. Traditional methods utilize image gradients within regularization function for controlling the smoothing and can produce artifacts when noise levels… read more here.

Keywords: regularization; exponent; structure tensor; image ... See more keywords

EFFECTS OF DIFFERENT DEVELOPMENT STAGES AND STRESS GRADIENT ON DENSITY-BIOMASS EXPONENT AND SIZE INEQUALITY OF HALOXYLON AMMODENDRON (C.A. MEY)

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Published in 2019 at "Applied Ecology and Environmental Research"

DOI: 10.15666/aeer/1706_1466514677

Abstract: Quantifying the biomass–density (M–N) exponent and size inequality in plant communities has become a long-standing issue in both theoretical and empirical studies. The biomass–density (M–N) exponent and size inequality of the tree populations have not… read more here.

Keywords: size inequality; exponent; development; density ... See more keywords