Results 61 to 70 of about 7,909 (213)
, 2017 Studujeme některé vlastnosti vlastních čísel a vlastních funkcí p-laplaciánu s homogenní Dirichletovou okrajovou podmínkou na kruhu a na kouli. Mimo jiné, na kruhu dokazujeme existenci neradiální vlastní funkce, která odpovídé radiálnímu vlastnímu číslu ...
Drábek, Pavel +3 more
core +1 more source
Boundary Value Problems, 2018 The present paper deals with a class of discontinuous Sturm–Liouville problems with boundary conditions rationally dependent on the eigenparameter.
Zhaowen Zheng +3 more
doaj +1 more source
Power spectral density and the brain
Canadian Journal of Statistics, Volume 54, Issue 3, September 2026.Abstract Time series from M/EEG (magneto/electroencephalography) and ECoG (electrocorticography) recordings are common sources of information about brain function. The power spectral density (PSD) preserves much of this information, up to second order. In the current decade, a burst of brain diagnostics using the slope of log(PSD) has appeared.
Priscilla E. Greenwood +2 more
wiley +1 more source
Stable computation of Laplacian eigenfunctions corresponding to clustered eigenvalues
summary:The accurate computation of eigenfunctions corresponding to tightly clustered Laplacian eigenvalues remains an extremely difficult problem.
Endo, Ryoki, Liu, Xuefeng
core +1 more source
Asymptotic formulae for eigenvalues and eigenfunctions of q-Sturm-Liouville problems
, 2011 We investigate the asymptotic behavior of the eigenvalues and the eigenfunctions of q-Sturm-Liouville eigenvalue problems. For this aim we study the asymptotic behavior of q-trigonometric functions as well as fundamental sets of solutions of the ...
Zeinab S. Mansour +3 more
core +1 more source
Structure and asymptotic expansion of eigenvalues of an integral-type nonlocal problem
Electronic Journal of Differential Equations, 2016 We study the structure of eigenvalues of second-order differential equations with nonlocal integral boundary conditions. Moreover, we consider the asymptotic expansion of the eigenvalues and the corresponding eigenfunctions, which shows that the ...
Zhong-Cheng Zhou, Fang-Fang Liao
doaj
Environmetrics, Volume 37, Issue 6, September 2026.ABSTRACT The management of lifespan and safety performance, aimed at ensuring the structural integrity and durability of highway infrastructure, has become an increasingly important area of research. In civil engineering, traditional methods for evaluating dynamic behavior, such as Operational Modal Analysis and the Peak Picking technique, often fall ...
Gianna Agrò, Mariantonietta Ruggieri
wiley +1 more source
四川大学学报. 自然科学版, 2022 The multiscale asymptotic analysis and computational method for the Steklov elastic eigenvalue problems are developed in a periodically perforated domain.
TAN Li-Qin, MA Qiang, HU Bing
doaj
CEV Model with Stochastic Volatility
Journal of Vasyl Stefanyk Precarpathian National University, 2019 This paper develops a systematic method for calculating approximate prices for a wide range of securities implying the tools of spectral analysis, singular and regular perturbation theory.
IVAN BURTNYAK, Anna Malytska
doaj +1 more source
Accurate and Efficient Data‐Driven Partitioned Scheme for Coupled Heterogeneous Numerical Models
Numerical Methods for Partial Differential Equations, Volume 42, Issue 5, September 2026.ABSTRACT Heterogeneous numerical models (HNMs) combine conventional discretization modules such as finite elements with nonconventional data‐driven and reduced‐order modules. HNMs can improve computational efficiency and enable simulations of multi‐physics systems in which one or more constituent components lack first‐principles descriptions and must ...
Edward Huynh +3 more
wiley +1 more source