Results 21 to 30 of about 1,067 (186)

Green function method for a fractional–order delay differential equation

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2020
In this paper, we investigated a boundary value problem with the Sturm-Liouville type conditions for a linear ordinary differential equation of fractional order with delay. The condition for the unique solvability of the problem is obtained in the form △
M.G. Mazhgikhova
doaj   +1 more source

Liouville type theorems for $\varphi$-subharmonic functions

open access: yesRevista Matemática Iberoamericana, 2001
In this paper we presents some Liouville type theorems for solutions of differential inequalities involving the \varphi -Laplacian. Our results in particular improve and generalize known results for the Laplacian and the
Rigoli M., Setti A. G.
openaire   +4 more sources

Reconstruction of the Volterra-type integro-differential operator from nodal points

open access: yesBoundary Value Problems, 2018
In this work, the Sturm–Liouville problem perturbated by a Volterra-type integro-differential operator is studied. We give a uniqueness theorem and an algorithm to reconstruct the potential of the problem from nodal points (zeros of eigenfunctions).
Baki Keskin
doaj   +1 more source

A Liouville type theorem for a class of anisotropic equations

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2016
In this paper we are dealing with entire solutions of a general class of anisotropic equations. Under some appropriate conditions on the data, we show that the corresponding equations cannot have non-trivial positive solutions bounded from above.
Barbu Luminiţa, Enache Cristian
doaj   +1 more source

Uncertain fractional forward difference equations for Riemann–Liouville type

open access: yesAdvances in Difference Equations, 2019
To model complex systems with discrete-time features and memory effects in the uncertain environment, a definition of an uncertain fractional forward difference equation with Riemann–Liouville-like forward difference is introduced.
Qinyun Lu, Yuanguo Zhu, Ziqiang Lu
doaj   +1 more source

On the existence of solutions for a multi-singular pointwise defined fractional q-integro-differential equation

open access: yesBoundary Value Problems, 2020
By using the Caputo type and the Riemann–Liouville type fractional q-derivative, we investigate the existence of solutions for a multi-term pointwise defined fractional q-integro-differential equation with some boundary value conditions. In fact, we give
Shahram Rezapour, Mohammad Esmael Samei
doaj   +1 more source

Three-circle theorems and Liouville-type theorems

open access: yesScience China Mathematics
14 ...
Jian, Run-Qiang, Zhang, Zhuhong
openaire   +3 more sources

Liouville type theorems for p-harmonic maps

open access: yesJournal of Mathematical Analysis and Applications, 2008
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Moon, Dong Joo   +2 more
openaire   +2 more sources

A Liouville-type Theorem on half-spaces for sub-Laplacians [PDF]

open access: yesProceedings of the American Mathematical Society, 2014
Summary: Let \( \mathcal {L}\) be a sub-Laplacian on \( \mathcal {L}^N\) and let \( \mathbb{G}=(\mathcal {L}^N,\circ ,\delta _\lambda )\) be its related homogeneous Lie group. Let \( \mathbb{E}\) be a Euclidean subgroup of \( \mathcal {L}^N\) such that the orthonormal projection \( \pi :\mathbb{G} \longrightarrow \mathbb{E}\) is a homomorphism of ...
Alessia E. Kogoj, Alessia E. Kogoj
openaire   +4 more sources

Nonexistence of positive solutions for the weighted higher-order elliptic system with Navier boundary condition

open access: yesBoundary Value Problems
We establish a Liouville-type theorem for a weighted higher-order elliptic system in a wider exponent region described via a critical curve. We first establish a Liouville-type theorem to the involved integral system and then prove the equivalence ...
Weiwei Zhao   +3 more
doaj   +1 more source

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