Results 21 to 30 of about 1,451 (109)

A Multi-Scale, Semi-Analytical Model for Transient Heat Transfer in a Nano-Composite Containing Spherical Inclusions

open access: yesEurasian Chemico-Technological Journal, 2019
This paper presents a semi-analytical model for transient heat conduction in a composite material reinforced with small spherical inclusions. Essential to the derivation of the model is the assumption that the size of the inclusions is much smaller than
A. Dobri, T. D. Papathanasiou
doaj   +1 more source

Andrzej Lasota's selected results [PDF]

open access: yesOpuscula Mathematica, 2008
In this article we recall Andrzej Lasota's selected results which either indicated new directions of research, or layed the foundations for new approaches, or solved interesting problems. The area of mathematical interests of Professor Andrzej Lasota was
Józef Myjak
doaj  

Second-order ordinary differential equations and inclusions with a new kind of integral and multi-strip boundary conditions [PDF]

open access: yesDifferential Equations & Applications, 2019
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ahmad, Bashir   +3 more
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A Filippov-Type Lemma for Stieltjes Differential Inclusions with Supremum

open access: yesMathematics
The aim of this paper is to generalize the classical Filippov lemma to the framework of Cauchy differential set-valued problems involving the supremum of the unknown function on a past interval and its Stieltjes derivative with respect to a left ...
Bianca Satco
doaj   +1 more source

A Lohner-type algorithm for control systems andordinary differential inclusions

open access: yesDiscrete and Continuous Dynamical Systems - B, 2009
We describe a Lohner-type algorithm for the computation of rigorous upper bounds for reachable set for control systems, solutions of ordinary differential inclusions and perturbations of ODEs.
Kapela, Tomasz, Zgliczyński, Piotr
openaire   +3 more sources

Multiple solutions for fourth-order ordinary differential inclusions

open access: yesDiscrete and Continuous Dynamical Systems - S
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Bonanno, Gabriele   +2 more
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Geometric Characterization of Validity of the Lyapunov Convexity Theorem in the Plane for Two Controls under a Pointwise State Constraint

open access: yesAxioms
This paper concerns control BVPs, driven by ODEs x′t=ut, using controls u0· &u1· in L1a,b,R2. We ask these two controls to satisfy a very simple restriction: at points where their first coordinates coincide, also their second coordinates must coincide ...
Clara Carlota   +2 more
doaj   +1 more source

Three periodic solutions for an ordinary differential inclusion with two parameters

open access: yesAnnales Polonici Mathematici, 2012
Applying a nonsmooth version of a three critical points theorem of Ricceri, we prove the existence of three periodic solutions for an ordinary differential inclusion depending on two parameters.
openaire   +3 more sources

Existence theorems for nth-order discontinuous ordinary differential inclusions

open access: yesApplied Mathematics Letters, 2006
The author studies the following problem for an \(n\)th-order differential inclusion: \[ \begin{cases} x^{(n)}(t) \in F(t,x(t)) & \text{for a.e. } t\in J,\\ x^{(i)}(0)=x_i\in \mathbb R, & i\in \{1,\dots,n-1\}, \end{cases} \] where \(J=[0,T]\) and \(F:J \times \mathbb R\to 2^{\mathbb R}\) is a multifunction.
openaire   +3 more sources

Existence theory for a third-order ordinary differential (equation, inclusion) with non-separated multi-point and nonlocal Stieltjes boundary conditions

open access: yes, 2022
Abstract This research develop the existence of solutions for a nonlinear third order ordinary differential equation with non-separated multi-point and nonlocal Riemann-Stieltjes boundary conditions. Standard tools of fixed point theorems are applied to prove the existence and uniquness results for the problem at hand.
openaire   +1 more source

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