Results 11 to 20 of about 11,196 (309)

Positive Solutions for a System of Fractional Boundary Value Problems with r-Laplacian Operators, Uncoupled Nonlocal Conditions and Positive Parameters

open access: yesAxioms, 2022
In this paper, we investigate the existence and nonexistence of positive solutions for a system of Riemann–Liouville fractional differential equations with r-Laplacian operators, subject to nonlocal uncoupled boundary conditions that contain Riemann ...
Alexandru Tudorache, Rodica Luca
doaj   +1 more source

A Time-Fractional Parabolic Inequality on a Bounded Interval

open access: yesMathematics, 2023
We study a time-fractional parabolic inequality posed on a bounded interval and involving a wight function W, where the fractional derivative is considered in the Caputo sense.
Amal Alshabanat   +3 more
doaj   +1 more source

The Logos killed and the Apology of Nonexistense in the Philosophical Doctrine of Russian Literary Modernism

open access: yesИнтеллект. Инновации. Инвестиции, 2020
The article examines ontological issues in Russian literary modernism philosophy. The relevance of the topic is due to the affinity of the processes that determine the dominants of the worldview in the field of education and modernity.
S.L. Slobodnyuk
doaj   +1 more source

A Time-Fractional Schrödinger Equation with Singular Potentials on the Boundary

open access: yesFractal and Fractional, 2023
A Schrödinger equation with a time-fractional derivative, posed in (0,∞)×I, where I=]a,b], is investigated in this paper. The equation involves a singular Hardy potential of the form λ(x−a)2, where the parameter λ belongs to a certain range, and a ...
Ibtehal Alazman   +2 more
doaj   +1 more source

Sharp nonexistence results for a linear elliptic inequality involving Hardy and Leray potentials [PDF]

open access: yes, 2011
We deal with nonnegative distributional supersolutions for a class of linear elliptic equations involving inverse-square potentials and logarithmic weights.
Roberta Musina   +8 more
core   +1 more source

Generalized Picone inequalities and their applications to (p,q)-Laplace equations

open access: yesOpen Mathematics, 2020
We obtain a generalization of the Picone inequality which, in combination with the classical Picone inequality, appears to be useful for problems with the (p,q)(p,q)-Laplace-type operators.
Bobkov Vladimir, Tanaka Mieko
doaj   +1 more source

The Brezis–Nirenberg problem for nonlocal systems

open access: yesAdvances in Nonlinear Analysis, 2016
By means of variational methods we investigate existence, nonexistence as well as regularity of weak solutions for a system of nonlocal equations involving the fractional laplacian operator and with nonlinearity reaching the critical growth and ...
Faria Luiz F. O.   +4 more
doaj   +1 more source

Non-monotone positive solutions of second-order linear differential equations: existence, nonexistence and criteria

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2016
We study non-monotone positive solutions of the second-order linear differential equations: $(p(t)x')' + q(t) x = e(t)$, with positive $p(t)$ and $q(t)$. For the first time, some criteria as well as the existence and nonexistence of non-monotone positive
Mervan Pašić, Satoshi Tanaka
doaj   +1 more source

Automated Dynamic Flow Experimentation for Rapid Kinetic Fitting of Transition Metal Catalysis

open access: yesAngewandte Chemie, EarlyView.
We have developed an automated dynamic flow experimentation platform to automatically fit and identify the most accurate kinetic model from a generated set of candidates. Three transition metal‐catalyzed transformations were performed using this workflow.
Florian L. Wagner   +3 more
wiley   +2 more sources

Why Realisms about Fiction Must (and Can) Accommodate Fictional Properties

open access: yesPhilosophies, 2023
The topic of fictional objects is a familiar one, the topic of fictional properties less so. But it deserves its own place in the philosophy of fiction, if only because fictional properties have such a prominent role to play in science fiction and ...
Frederick Kroon, Paul Oppenheimer
doaj   +1 more source

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