Results 41 to 50 of about 3,295 (140)

Using the Choquet integral for the determination of the anxiety degree

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica
One considers a group S of subjects and one uses the measured values of EEG waves and the levels of anxiety given by the psychologists for the members of S in order to construct a monotone measure µ.
Chiţescu Ion   +2 more
doaj   +1 more source

Conformal scattering for a nonlinear wave equation on a curved background

open access: yes, 2010
The purpose of this paper is to establish a geometric scattering result for a conformally invariant nonlinear wave equation on an asymptotically simple spacetime. The scattering operator is obtained via trace operators at null infinities.
Bachelot A.   +15 more
core   +2 more sources

Robust distortion risk measures

open access: yesMathematical Finance, Volume 34, Issue 3, Page 774-818, July 2024.
Abstract The robustness of risk measures to changes in underlying loss distributions (distributional uncertainty) is of crucial importance in making well‐informed decisions. In this paper, we quantify, for the class of distortion risk measures with an absolutely continuous distortion function, its robustness to distributional uncertainty by deriving ...
Carole Bernard   +2 more
wiley   +1 more source

Recurrent Neural Network (RNN)–Based Approach to Uncover the Relationship Between Block Size and Blockchain Performance

open access: yesApplied Computational Intelligence and Soft Computing, Volume 2024, Issue 1, 2024.
Blockchain is a distributed system where transactions are recorded on blocks. The blocks are linked with previous blocks creating a chain of blocks that ensures the integrity of the blockchain. Throughput operates as a pivotal performance indicator in blockchain contributing to its popularity among organizations and individual users.
Muhammad Hasnain   +7 more
wiley   +1 more source

Global pointwise decay estimates for defocusing radial nonlinear wave equations

open access: yes, 2009
We prove global pointwise decay estimates for a class of defocusing semilinear wave equations in $n=3$ dimensions restricted to spherical symmetry. The technique is based on a conformal transformation and a suitable choice of the mapping adjusted to the ...
Hörmander L.   +5 more
core   +1 more source

Preduals of quadratic Campanato spaces associated to operators with heat kernel bounds [PDF]

open access: yes, 2014
Let $L$ be a nonnegative, self-adjoint operator on $L^2(\mathbb{R}^n)$ with the Gaussian upper bound on its heat kernel. As a generalization of the square Campanato space $\mathcal{L}^{2,\lambda}_{-\Delta}(\mathbb R^n)$, in \cite{DXY} the quadratic ...
Song, Liang, Xiao, Jie, Yan, Xuefang
core  

Blow Up for the Semilinear Wave Equation in Schwarzschild Metric

open access: yes, 2004
We study the semilinear wave equation in Schwarzschild metric (3+1 dimensional space--time). First, we establish that the problem is locally well--posed in $\cs H^\sigma$ for any $\sigma \geq 1$; then we prove the blow up of the solution for every real ...
Catania, Davide, Georgiev, Vladimir
core   +1 more source

A parametrix for quantum gravity?

open access: yes, 2016
In the sixties, DeWitt discovered that the advanced and retarded Green functions of the wave operator on metric perturbations in the de Donder gauge make it possible to define classical Poisson brackets on the space of functionals that are invariant ...
Esposito, Giampiero
core   +1 more source

Comonotonic Book-Making with Nonadditive Probabilities [PDF]

open access: yes
This paper shows how de Finetti's book-making principle, commonly used to justify additive subjective probabilities, can be modi-ed to agree with some nonexpected utility models.More precisely, a new foundation of the rank-dependent models is presented ...
Diecidue, E., Wakker, P.P.
core   +1 more source

Choquet Integrals With Respect to Non-Monotonic Set Functions [PDF]

open access: yes
This paper introduces the signed Choquet integral, i.e., a nonmonotonic generalization of the Choquet integral. Applications to welfare theory, multi-period optimization, and asset pricing are described.Choquet integral;comonotonicity;arbitrage;time ...
De Waegenaere, A.M.B., Wakker, P.P.
core   +1 more source

Home - About - Disclaimer - Privacy