Results 21 to 30 of about 1,653 (108)

High Order Riesz Transforms and Mean Value Formula for Generalized Translate Operator [PDF]

open access: yes, 2013
In this paper, the mean value formula depends on the Bessel generalized shift operator corresponding to the solutions of the boundary value problem related to the Bessel operator are studied.
Ekincioglu, I., Keskin, C., Sayan, H. H.
core   +2 more sources

A Network Coding‐Based Braided Multipath Routing Protocol for Wireless Sensor Networks

open access: yesWireless Communications and Mobile Computing, Volume 2019, Issue 1, 2019., 2019
In wireless sensor networks (WSNs), energy efficiency can simultaneously guarantee robustness to link loss and node failure and is a key design goal of routing protocols because WSNs are strongly constrained in terms of transmission reliability, transmission delay, and energy consumption.
Zhihua Li   +4 more
wiley   +1 more source

Instability of Vertical Constant Through Flows in Binary Mixtures in Porous Media with Large Pores

open access: yesMathematical Problems in Engineering, Volume 2019, Issue 1, 2019., 2019
A binary mixture saturating a horizontal porous layer, with large pores and uniformly heated from below, is considered. The instability of a vertical fluid motion (throughflow) when the layer is salted by one salt (either from above or from below) is analyzed.
Florinda Capone   +3 more
wiley   +1 more source

Bifurcation and Nodal Solutions for the Half‐Linear Problems with Nonasymptotic Nonlinearity at 0 and ∞

open access: yesDiscrete Dynamics in Nature and Society, Volume 2016, Issue 1, 2016., 2016
We study the existence of nodal solutions for the following problem: −x″ = αx+ + βx− + ra(t)f(x), 0 < t < 1, x(0) = x(1) = 0, where r ≠ 0 is a parameter, a(t) ∈ C([0,1], (0, ∞)) with a(t)≢0 on any subinterval of [0,1], x+ = max{x, 0}, x− = −min{x, 0}, and α, β ∈ C[0,1]; f∈C(R,R), sf(s) > 0 for s ≠ 0, and f0, f∞ ∉ (0, ∞), where f0 = lim|s|→0f(s)/s and f∞
Wenguo Shen, Gabriele Bonanno
wiley   +1 more source

EHA2024 Hybrid Congress [PDF]

open access: yesHemasphere
HemaSphere, Volume 8, Issue S1, June 2024.
europepmc   +2 more sources

Comparing First‐Order Microscopic and Macroscopic Crowd Models for an Increasing Number of Massive Agents

open access: yesAdvances in Mathematical Physics, Volume 2016, Issue 1, 2016., 2016
A comparison between first‐order microscopic and macroscopic differential models of crowd dynamics is established for an increasing number N of pedestrians. The novelty is the fact of considering massive agents, namely, particles whose individual mass does not become infinitesimal when N grows.
Alessandro Corbetta   +2 more
wiley   +1 more source

A Local Estimate for the Maximal Function in Lebesgue Spaces with EXP‐Type Exponents

open access: yesJournal of Function Spaces, Volume 2015, Issue 1, 2015., 2015
It is proven that if 1 ≤ p(·) < ∞ in a bounded domain Ω⊂Rn and if p(·) ∈ EXPa(Ω) for some a > 0, then given f ∈ Lp(·)(Ω), the Hardy‐Littlewood maximal function of f, Mf, is such that p(·)log(Mf) ∈ EXPa/(a+1)(Ω). Because a/(a + 1) < 1, the thesis is slightly weaker than (Mf) λp(·) ∈ L1(Ω) for some λ > 0. The assumption that p(·) ∈ EXPa(Ω) for some a > 0
Alberto Fiorenza, Henryk Hudzik
wiley   +1 more source

Nontrivial solutions of boundary value problems for second order functional differential equations [PDF]

open access: yes, 2015
In this paper we present a theory for the existence of multiple nontrivial solutions for a class of perturbed Hammerstein integral equations. Our methodology, rather than to work directly in cones, is to utilize the theory of fixed point index on affine ...
Calamai, Alessandro, Infante, Gennaro
core   +1 more source

Sturmian comparison and oscillation theorems for quasilinear elliptic equations with mixed nonlinearities via Picone-type inequality [PDF]

open access: yes, 2010
A Picone-type inequality is established for quasilinear elliptic operators with mixed nonlinearities, and Sturmian comparison and oscillation theorems for quasilinear elliptic equations are derived by using the Picone-type ...
Yoshida Norio
core   +1 more source

Non-local Torsion functions and Embeddings

open access: yes, 2018
Given $s \in (0,1)$, we discuss the embedding of $\mathcal D^{s,p}_0(\Omega)$ in $L^q(\Omega)$. In particular, for $1\le q < p$ we deduce its compactness on all open sets $\Omega\subset \mathbb R^N$ on which it is continuous. We then relate, for all q up
Franzina, Giovanni
core   +1 more source

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