Results 61 to 70 of about 79,186 (232)

Associated transforms for solution of nonlinear equations

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1991
Nonlinear multivariable differential or integrodifferential equations with terms of mixed dimensionality can be solved using multidimensional Laplace transform.
Joyati Debnath, Narayan C. Debnath
doaj   +1 more source

Random discrete probability measures based on a negative binomial process

open access: yesCanadian Journal of Statistics, EarlyView.
Abstract A distinctive functional of the Poisson point process is the negative binomial process for which the increments are not independent but are independent conditional on an underlying gamma variable. Using a new point process representation for the negative binomial process, we generalize the Poisson–Kingman distribution and its corresponding ...
Sadegh Chegini, Mahmoud Zarepour
wiley   +1 more source

A Laplace Transform Method for the Image In-Painting

open access: yesJournal of Algorithms & Computational Technology, 2015
There are many image processing techniques based on partial differential equations that perform well, but they consume much computational time. It's vital that rapid and efficient ways of solving these equations are developed.
N. Kokulan, C.-H. Lai
doaj   +1 more source

A probabilistic diagnostic for Laplace approximations: Introduction and experimentation

open access: yesCanadian Journal of Statistics, EarlyView.
Abstract Many models require integrals of high‐dimensional functions: for instance, to obtain marginal likelihoods. Such integrals may be intractable, or too expensive to compute numerically. Instead, we can use the Laplace approximation (LA). The LA is exact if the function is proportional to a normal density; its effectiveness therefore depends on ...
Shaun McDonald, Dave Campbell
wiley   +1 more source

A comparative study of Bagley–Torvik equation under nonsingular kernel derivatives using Weeks method

open access: yesOpen Physics
Modeling several physical events leads to the Bagley–Torvik equation (BTE). In this study, we have taken into account the BTE, including the Caputo–Fabrizio and Atangana–Baleanu derivatives. It becomes challenging to find the analytical solution to these
Kamran   +5 more
doaj   +1 more source

The Role of High‐Gradient Diffusion Nuclear Magnetic Resonance in Exploring Peculiarity of Water in Ionic Liquids Doped with Alkali Metals

open access: yesChemistry–Methods, EarlyView.
Applying high gradients during diffusion nuclear magnetic resonance experiments allows for the determination of isolated microenvironments in ternary solutions composed of an imidazolium‐based ionic liquid, water and alkali metal halide. Two separate water populations are detected, forming either the isolated solvent network or the first solvation ...
Katarzyna Dziubińska‐Kühn   +4 more
wiley   +1 more source

Measuring the error of dynamic hedging: a Laplace transform approach [PDF]

open access: yes
We compute the expected value and the variance of the discretization error of delta hedging and of other strategies in the presence of proportional transaction costs.
Flavio Angelini, Stefano Herzel
core  

Multiscale NMR Characterization in Shale: From Relaxation Mechanisms to Porous Media Research Frontiers

open access: yesEnergy Science &Engineering, EarlyView.
ABSTRACT Nuclear magnetic resonance (NMR), as an advanced non‐destructive and rapid measurement technology, has shown unique advantages in the evaluation of unconventional shale reservoirs. This paper systematically introduces the fundamental principles of NMR spectroscopy and relaxation theory in porous media and comprehensively analyzes the ...
Long Zhou   +8 more
wiley   +1 more source

The Generalized Hermite Spectral Method Combined with Laplace Transform for Solution of the Time Fractional Fokker–Planck Equation

open access: yesAdvances in Mathematical Physics
The paper proposes a method to solve the time fractional Fokker–Planck equation using the generalized Hermite spectral method and Laplace transform. By the Laplace transform, the ordinary differential equation about the orthogonal expansion coefficient ...
Lu-feng Yang
doaj   +1 more source

Application of dual boundary element method in active sensing [PDF]

open access: yes, 2013
In this paper, a boundary element method (BEM) for the dynamic analysis of 3D solid structures with bonded piezoelectric transducers is presented. The host structure is modelled with BEM and the piezoelectric transducers are formulated using a 3D semi ...
Aliabadi, MH, BENEDETTI, Ivano, Zou, F
core  

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