Results 21 to 30 of about 18,253 (276)
Jeffreys priors for mixture estimation: properties and alternatives [PDF]
, 2017 While Jeffreys priors usually are well-defined for the parameters of mixtures of distributions, they are not available in closed form. Furthermore, they often are improper priors.
Grazian, Clara, Robert, Christian P.
core +2 more sources
CALCULATION OF THE IMPROPER INTEGRALS FOR FOURIER BOUNDARY ELEMENT METHOD
Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska, 2013 The traditional Boundary Element Method (BEM) is a collection of numerical techniques for solving some partial differential equations. The classical BEM produces a fully populated coefficients matrix.
Edyta Łukasik +2 more
doaj +1 more source
AN IMPROPER INTEGRAL, THE BETA FUNCTION, THE WALLIS RATIO, AND THE CATALAN NUMBERS
Проблемы анализа, 2018 In the paper we present closed and unified expressions for a sequence of improper integrals in terms of the beta function and the Wallis ratio.
Qi Feng
doaj +1 more source
About zeros of some oscillations with dynamic friction [PDF]
INCAS Bulletin, 2014 Consider a second order differential non-linear equation having free boundary value conditions. Let be a solution having infinity of unknown zeros. The integral of energy gives the implicit correlation between the successive modules of the extreme ...
Nicolae MARCOV
doaj +1 more source
Trends in Computational and Applied Mathematics, 2023 The calculation of the Coulomb Potential corresponding to the product of two Exponential Type Functions, inherently has numerical challenges that must be resolved.
C. J. Alturria Lanzardo +4 more
doaj +1 more source
On oscillatory behavior of two-dimensional time scale systems
Advances in Difference Equations, 2018 This paper deals with long-time behaviors of nonoscillatory solutions of a system of first-order dynamic equations on time scales. Some well-known fixed point theorems and double improper integrals are used to prove the main results.
Özkan Öztürk
doaj +1 more source
Calculation of the Vacuum Energy Density Using Zeta Function Regularization
Physical Sciences Forum, 2023 This paper presents a theoretical calculation of the vacuum energy density by summing the contributions of all quantum fields’ vacuum states, which turns out to indicate that there seems to be a missing bosonic contribution in order to match the ...
Siamak Tafazoli
doaj +1 more source
Stochastic integral characterizations of semi-selfdecomposable distributions and related Ornstein-Uhlenbeck type processes [PDF]
, 2009 In this paper, three topics on semi-selfdecomposable distributions are studied. The first one is to characterize semi-selfdecomposable distributions by stochastic integrals with respect to Levy processes.
Maejima, Makoto, Ueda, Yohei
core +3 more sources
Rigorous Real-Time Feynman Path Integral for Vector Potentials
, 1999 we will show the existence and uniqueness of a real-time, time-sliced Feynman path integral for quantum systems with vector potential. Our formulation of the path integral will be derived on the $L^2$ transition probability amplitude via improper Riemann
Albeverio S +18 more
core +2 more sources
Cauchy Principal Value Contour Integral with Applications
Entropy, 2017 Cauchy principal value is a standard method applied in mathematical applications by which an improper, and possibly divergent, integral is measured in a balanced way around singularities or at infinity.
Matilde Legua, Luis M. Sánchez-Ruiz
doaj +1 more source