Results 31 to 40 of about 4,987,876 (357)

Numerical solution of a control problem for ordinary differential equations with multipoint integral condition

open access: yesInternational Journal of Mathematics and Physics, 2019
A linear boundary value problem with a parameter for ordinary differential equations with multipoint integral conditionis investigated.The method of parameterization is used for solving the considered problem.
A. Assanova   +2 more
semanticscholar   +1 more source

On some fučík type problem with cubic nonlinearity

open access: yesMathematical Modelling and Analysis, 2011
We study the second order Fučík type problem with cubic nonlinearity  and construct the Fučík spectrum for this problem. The spectrum obtained under normalization condition (otherwise problem may have continuous spectra) structurally is similar to Fučík ...
N. Sergejeva
doaj   +1 more source

An efficient numerical method for a singularly perturbed Fredholm integro-differential equation with integral boundary condition

open access: yesJournal of Applied Mathematics and Computation, 2022
In this paper, a linear singularly perturbed Fredholm integro-differential initial value problem with integral condition is being considered. On a Shishkin-type mesh, a fitted finite difference approach is applied using a composite trapezoidal rule in ...
M. Durmaz, I. Amirali, G. M. Amiraliyev
semanticscholar   +1 more source

On a problem for an elliptic type equation of the second kind with a conormal and integral condition

open access: yesNanosystems: Physics, Chemistry, Mathematics, 2018
The Poincaré problem with the conormal derivative are studied by Tricomi, Lavrentyev–Bitsadze and Gellerstedt [1–5]. Boundary value problems with the conormal derivative for the elliptic type equation with one and two lines of degeneration of the first ...
B. Islomov, A. Abdullaev
semanticscholar   +1 more source

QUANTUM LIE SYSTEMS AND INTEGRABILITY CONDITIONS [PDF]

open access: yesInternational Journal of Geometric Methods in Modern Physics, 2009
The theory of Lie systems has recently been applied to Quantum Mechanics and additionally some integrability conditions for Lie systems of differential equations have also recently been analyzed from a geometric perspective. In this paper we use both developments to obtain a geometric theory of integrability in Quantum Mechanics and we use it to ...
Cariñena, José F., de Lucas, Javier
openaire   +2 more sources

On the Boundary Value Problem for a Three-Dimensional Analog of the Boussinesq Differential Equation [PDF]

open access: yesУчёные записки Казанского университета: Серия Физико-математические науки, 2016
This paper considers the questions of solvability and construction of the solution of the nonlocal boundary value problem for a three-dimensional analog of the homogeneous fourth-order Boussinesq differential equation.
T.K. Yuldashev
doaj  

AN INTEGRAL CONDITION FOR CORE-COLLAPSE SUPERNOVA EXPLOSIONS [PDF]

open access: yes, 2015
We derive an integral condition for core-collapse supernova (CCSN) explosions and use it to construct a new diagnostic of explodability. The fundamental challenge in CCSN theory is to explain how a stalled accretion shock revives to explode a star.
Jeremiah W. Murphy, J. Dolence
semanticscholar   +1 more source

A Quality Improvement Initiative to Standardize Pneumocystis jirovecii Pneumonia Prophylaxis in Pediatric Patients With Solid Tumors

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Pediatric patients with extracranial solid tumors (ST) receiving chemotherapy are at an increased risk for Pneumocystis jirovecii pneumonia (PJP). However, evidence guiding prophylaxis practices in this population is limited. A PJP‐related fatality at our institution highlighted inconsistent prescribing approaches and concerns about
Kriti Kumar   +8 more
wiley   +1 more source

Temporal integration and instrumental conditioned reinforcement [PDF]

open access: yesLearning & Behavior, 2014
Stimuli associated with primary reinforcement for instrumental behavior are widely believed to acquire the capacity to function as conditioned reinforcers via Pavlovian conditioning. Some Pavlovian conditioning studies suggest that animals learn the important temporal relations between stimuli and integrate such temporal information over separate ...
Eric A, Thrailkill, Timothy A, Shahan
openaire   +2 more sources

Sickle Cell Disease Is an Inherent Risk for Asthma in a Sibling Comparison Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction Sickle cell disease (SCD) and asthma share a complex relationship. Although estimates vary, asthma prevalence in children with SCD is believed to be comparable to or higher than the general population. Determining whether SCD confers an increased risk for asthma remains challenging due to overlapping symptoms and the ...
Suhei C. Zuleta De Bernardis   +9 more
wiley   +1 more source

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