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Which distance-decay function for migration and which one for commuting? A case study of Slovenia
Croatian Operational Research Review, 2014 The volume of social interactions like migration and commuting between two locations depends significantly on the distance between them. In the paper, we analysed the shape and parameters of several distance-decay functions for commuting and for ...
Samo Drobne, Mitja Lakner
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Non-exponential decay for Polaron model [PDF]
Physics Letters A, 1999 A model of particle interacting with quantum field is considered. The model includes as particular cases the polaron model and non-relativistic quantum electrodynamics. We compute matrix elements of the evolution operator in the stochastic approximation and show that depending on the state of the particle one can get the non-exponential decay with the ...
ACCARDI, LUIGI +2 more
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Geophysical Research Letters, 2022 Accurate prediction of tropical cyclone (TC) intensity is important but challenging. In this study, a physically based algebraic decay model for predicting TC weakening after landfall over China is introduced, which assumes the TC weakening rate is ...
Lu Liu, Yuqing Wang
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Exponential decay in the stark effect [PDF]
Communications in Mathematical Physics, 1980 LetH=−Δ+V+Fx1 withV(x1,x⊥) analytic in the first variable andV(x1+ia, x⊥) bounded and decreasing to zero asx → ∞ for eacha ∈ ℝ. Let ψ be an eigenvector of −Δ+V with negative eigenvalue. Among our results we show that forF≠0, (ψ,e−Hψ) decays exponentially at a rate governed by the positions of the resonances ofH.
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Polynomial asymptotic stability of damped stochastic differential equations. [PDF]
, 2004 The paper studies the polynomial convergence of solutions of a scalar nonlinear Itˆo stochastic differential equation dX(t) = −f(X(t)) dt + (t) dB(t) where it is known, a priori, that limt!1 X(t) = 0, a.s. The intensity of the stochastic perturbation
D. Mackey +3 more
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PLoS ONE, 2016 We present novel Bayesian methods for the analysis of exponential decay data that exploit the evidence carried by every detected decay event and enables robust extension to advanced processing.
Mark I Rowley +3 more
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Agglomeration decay in rural areas
Insights into Regional Development, 2022 Spatial proximity to other economic activities – occasionally labeled as ‘market access’ and ‘economic density’ – is associated with good economic performance. How the impulses from economic activities diminish over space is known as ‘agglomeration decay’
Rasmus Bøgh Holmen
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On the exponential decay of magnetic stark resonances [PDF]
Reports on Mathematical Physics, 2005 We study the time decay of magnetic Stark resonant states. As our main result we prove that for sufficiently large time these states decay exponentially with the rate given by the imaginary parts of eigenvalues of certain non-selfadjoint operator. The proof is based on the method of complex translations.
Ferrari C.h., KOVARIK, HYNEK
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High Voltage, 2020 Saturable reactor insulation is currently stressed by an exponential decay pulse voltage under normal operating conditions. The partial discharge (PD) characteristics of epoxy resin under an exponential decay pulse voltage were studied here and were ...
Lu Gui +5 more
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Energies, 2023 Variable-cross-section beams have better mass and strength distribution compared with constant cross-section beams, which can optimize the harvesting power of piezoelectric vibration energy harvesters, which are widely used in self-supplied and low-power
Zhaoxin Cai +3 more
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