Results 161 to 170 of about 60,560 (308)

Cazenave‐Dickstein‐Weissler‐Type Extension of Fujita'S Problem on Heisenberg Groups

open access: yesMathematical Methods in the Applied Sciences, Volume 49, Issue 2, Page 499-511, 30 January 2026.
ABSTRACT This paper investigates the Fujita critical exponent for a heat equation with nonlinear memory posed on the Heisenberg groups. A sharp threshold is identified such that, for exponent values less than or equal to this critical value, no global solution exists, regardless of the choice of nonnegative initial data. Conversely, for exponent values
Mokhtar Kirane   +3 more
wiley   +1 more source

Abstract Boundary Delay Systems and Application to Network Flow

open access: yesMathematical Methods in the Applied Sciences, Volume 49, Issue 1, Page 119-129, 15 January 2026.
ABSTRACT This paper investigates the well‐posedness and positivity of solutions to a class of delayed transport equations on a network. The material flow is delayed at the vertices and along the edges. The problem is reformulated as an abstract boundary delay equation, and well‐posedness is proved by using the Staffans–Weiss theory.
András Bátkai   +2 more
wiley   +1 more source

Challenges in nonlocal modeling: nonlocal boundary conditions and nonlocal interfaces.

open access: yesProposed for presentation at the WCCM 2020 held January 11-15, 2021 in Virtual., 2020
openaire   +2 more sources

A Force‐Based Beam‐Column Element With Selective Gradient‐Inelasticity for Softening Materials in 3‐Dimensional Nonlinear Analysis

open access: yesEarthquake Engineering &Structural Dynamics, Volume 55, Issue 1, Page 26-45, January 2026.
ABSTRACT Fiber‐based beam‐column elements featuring an effective material constitutive law with softening can capture the degrading response of structural members under extreme loading. However, these elements exhibit strain localization and mesh divergence, which impedes their accuracy.
Diego Isidoro Heredia Rosa   +4 more
wiley   +1 more source

Vibration Analysis of Multilayer Stepped Cross-Sectional Carbon Nanotubes. [PDF]

open access: yesNanomaterials (Basel)
Yildiz YO   +4 more
europepmc   +1 more source

Peridynamic elastic waves in two-dimensional unbounded domains: Construction of nonlocal Dirichlet-type absorbing boundary conditions

open access: green, 2023
Arman Shojaei   +5 more
openalex   +2 more sources

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