Results 21 to 30 of about 216,354 (284)

Radial solutions of inhomogeneous fourth order elliptic equations and weighted Sobolev embeddings

open access: yesAdvances in Nonlinear Analysis, 2015
We deal with a class of inhomogeneous elliptic problems involving the biharmonic operator Δ2u + V(|x|)|u|q-2u = Q(|x|)f(u), u ∈ D02,2(ℝN), where Δ2 is the biharmonic operator and V, Q are singular continuous functions.
Demarque Reginaldo, Miyagaki Olimpio H.
doaj   +1 more source

Generalized model for anisotropic compact stars [PDF]

open access: yes, 2016
In the present investigation an exact generalized model for anisotropic compact stars of embedding class one is sought for under general relativistic background. The generic solutions are verified by exploring different physical aspects, viz.
Deb, Debabrata   +3 more
core   +2 more sources

THz Characterization and Modeling of SiGe HBTs: Review (Invited)

open access: yesIEEE Journal of the Electron Devices Society, 2020
This article presents a state-of-art review of on-wafer S-parameter characterization of THz silicon transistors for compact modelling purpose. After, a brief review of calibration/de-embedding techniques, the paper focuses on the on-wafer calibration ...
Sebastien Fregonese   +5 more
doaj   +1 more source

Sharpened Adams Inequality and Ground State Solutions to the Bi-Laplacian Equation in ℝ4

open access: yesAdvanced Nonlinear Studies, 2018
In this paper, we establish a sharp concentration-compactness principle associated with the singular Adams inequality on the second-order Sobolev spaces in ℝ4{\mathbb{R}^{4}}.
Chen Lu   +3 more
doaj   +1 more source

Anisotropic compact star model: a brief study via embedding

open access: yesEuropean Physical Journal C: Particles and Fields, 2019
In present article a new model of compact star is obtained in the framework of general relativity which does not suffer from any kinds of singularity. We assume that the underlying fluid distribution is anisotropic in nature along with a new form for the
Piyali Bhar
doaj   +1 more source

Realization of compact spaces as cb-Helson sets [PDF]

open access: yes, 2015
We show that, given a compact Hausdorff space $\Omega$, there is a compact group ${\mathbb G}$ and a homeomorphic embedding of $\Omega$ into ${\mathbb G}$, such that the restriction map ${\rm A}({\mathbb G})\to C(\Omega)$ is a complete quotient map of ...
Choi, Yemon
core   +2 more sources

Remarks on Smooth Real-Compactness for Sikorski Spaces

open access: yesDemonstratio Mathematica, 2014
It is known that every Sikorski space with the countably generated differential structure is smoothly real-compact. It means that every homomorphism from its differential structure, which forms a ring of smooth real-valued functions into the ring of real
Cukrowski Michał J.   +1 more
doaj   +1 more source

Embeddability of some strongly pseudoconvex CR manifolds

open access: yes, 2004
We obtain an embedding theorem for compact strongly pseudoconvex CR manifolds which are bounadries of some complete Hermitian manifolds. We use this to compactify some negatively curved Kaehler manifolds with compact strongly pseudoconvex boundary.
Marinescu, G., Yeganefar, N.
core   +1 more source

Sobolev Spaces on Locally Compact Abelian Groups: Compact Embeddings and Local Spaces

open access: yesJournal of Function Spaces, 2014
We continue our research on Sobolev spaces on locally compact abelian (LCA) groups motivated by our work on equations with infinitely many derivatives of interest for string theory and cosmology.
Przemysław Górka   +2 more
doaj   +1 more source

Synset2Node: A new synset embedding based upon graph embeddings

open access: yesIntelligent Systems with Applications, 2023
Due to the advances made in recent years, embedding methods caused a significant increase in the accuracy of text or graph processing methods. Embedding methods exhibit a compact vector representation of the basic elements (words, synsets, nodes,..) of ...
Fatemeh Jafarinejad
doaj   +1 more source

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