Results 41 to 50 of about 5,523,783 (116)

Space-time spectral collocation algorithm for solving time-fractional Tricomi-type equations

Open Physics, 2016
We introduce a new numerical algorithm for solving one-dimensional time-fractional Tricomi-type equations (T-FTTEs). We used the shifted Jacobi polynomials as basis functions and the derivatives of fractional is evaluated by the Caputo definition.
Abdelkawy M.A., Ahmed Engy A., Alqahtani Rubayyi T.   +2 more
doaj   +1 more source

Average‐Case Matrix Discrepancy: Satisfiability Bounds

Random Structures &Algorithms, Volume 67, Issue 3, October 2025.
ABSTRACT Given a sequence of d×d$$ d\times d $$ symmetric matrices {Wi}i=1n$$ {\left\{{\mathbf{W}}_i\right\}}_{i=1}^n $$, and a margin Δ>0$$ \Delta >0 $$, we investigate whether it is possible to find signs (ε1,…,εn)∈{±1}n$$ \left({\varepsilon}_1,\dots, {\varepsilon}_n\right)\in {\left\{\pm 1\right\}}^n $$ such that the operator norm of the signed sum ...
Antoine Maillard
wiley   +1 more source

A SPECIAL CASE OF THE GENERALIZED TRICOMI PROBLEM FOR THE LAVRENTIEV–BITSADZE EQUATION

, 2011
We study the generalized Tricomi problem for the Lavrentiev–Bitsadze equation in a sector, when the boundary condition prescribed in the hyperbolic region is far away from the characteristic. The existence and uniqueness of a solution to this problem is
DIAN HU
core   +1 more source

A note on the fundamental solution for the Tricomi-type equation in the hyperbolic domain [PDF]

, 2004
Barros-Neto and Gelfand (Duke Math. J. 98 (3) (1999) 465; Duke Math. J. 117 (2) (2003) 561) constructed for the Tricomi operator y∂x2+∂y2 on the plane the fundamental solutions with the supports in the regions related to the geometry of the ...
Yagdjian, Karen
core   +1 more source

Краевая задача со смещением для обобщенного уравнения Трикоми со спектральным параметром в неограниченной области

Vestnik KRAUNC: Fiziko-Matematičeskie Nauki, 2020
В данной работе для обобщенного уравнения Трикоми со спектральным параметром в неограниченной области эллиптическая часть которой является горизонтальной полосой исследуется задача со смещением на характеристиках разных семейств.
Зуннунов, Р.Т., Хайдаров, И.У.   +1 more
doaj   +1 more source

An Explicit Factorization of the Green's Function for an Acoustic Half‐Space Problem with Impedance Boundary Conditions into an Oscillatory Exponential and a Slowly Varying Function

Mathematical Methods in the Applied Sciences, Volume 48, Issue 13, Page 12807-12812, September 2025.
ABSTRACT In this paper, new representations of the Green's function for an acoustic d$$ d $$‐dimensional half‐space problem with impedance boundary conditions are presented. The main features of the new representation are in addition to additive terms that appear also in the case of Dirichlet or Neumann boundary conditions, the remaining part of the ...
C. Lin, J. M. Melenk, S. Sauter
wiley   +1 more source

Tricomi problem for second kind parabolic hyperbolic type equation

, 2020
You shouldn't use formulas and citations in the abstract.In this article, the Tricomi problem for a parabolic-hyperbolictype equation in a mixed domain is investigated.
Okboev, Akmaljon Bakhromjonovich
core  

Computer‐Based Answer‐Until‐Correct and Elaborated Feedback: Effects on Affective‐Motivational and Performance Outcomes

Journal of Computer Assisted Learning, Volume 41, Issue 2, April 2025.
ABSTRACT Background Educational assessments increasingly shift towards computer‐based formats. Many studies have explored how different types of automated feedback affect learning. However, few studies have investigated how digital performance feedback affects test takers' ratings of affective‐motivational reactions during a testing session.
Ute Mertens, Marlit A. Lindner
wiley   +1 more source

A boundary value problem for a third order hyperbolic equation with degeneration of order inside the domain

Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2017
In this paper we study the boundary value problem for a degenerating third order equation of hyperbolic type in a mixed domain. The equation under consideration in the positive part of the domain coincides with the Hallaire equation, which is a ...
Ruzanna Kh Makaova
doaj   +1 more source

Self‐Comparing With Virtual Influencers: Effects on Followers' Wellbeing

Psychology &Marketing, Volume 42, Issue 3, Page 780-798, March 2025.
ABSTRACT While there is pervasive research on virtual influencers (VIs) and their impacts on consumer behaviors, there is a lack of understanding of their effects on followers' wellbeing. Drawing on social comparison theory, in this study, we examine how followers self‐compare with VIs and what the effects of this process are on their wellbeing.
Lina I. Nasr, Sahar Mousavi, Nina Michaelidou   +2 more
wiley   +1 more source