Results 11 to 20 of about 22,129,127 (338)

COHERENT SYSTEMS ON ELLIPTIC CURVES [PDF]

open access: yesInternational Journal of Mathematics, 2005
In this paper we consider coherent systems (E,V) on an elliptic curve which are α-stable with respect to some value of a parameter α. We show that the corresponding moduli spaces, if non-empty, are smooth and irreducible of the expected dimension. Moreover we give precise conditions for non-emptiness of the moduli spaces.
Herbert Lange, Peter E. Newstead
openaire   +3 more sources

Communication Aspects for a Measurement Based UWB in-Body to on-Body Channel

open access: yesIEEE Access, 2019
A wireless capsule endoscopy (WCE) is a good option for the screening of the digestive system. To better facilitate detection of diseases at an early stage, gastroenterologists seek both higher frame rate and frame resolution than what is offered in the ...
Pal Anders Floor   +5 more
doaj   +1 more source

On the Existence of Integrable Solutions to Nonlinear Elliptic Systems and Variational Problems with Linear Growth [PDF]

open access: yesArchive for Rational Mechanics and Analysis, 2016
We investigate the properties of certain elliptic systems leading, a priori, to solutions that belong to the space of Radon measures. We show that if the problem is equipped with a so-called asymptotic radial structure, then the solution can in fact be ...
Lisa Beck   +3 more
semanticscholar   +1 more source

Multidimensional analogs of A. Bicardze system

open access: yesLietuvos Matematikos Rinkinys, 2001
The problem of classification of elliptic partial differential systems is studied. Two classes of multidimensional elliptic systems are defined, that are to be considered multidimensional ana­logs of strongly connected and weekly connected elliptic ...
Eugenijus Paliokas
doaj   +1 more source

Saddle-shaped positive solutions for elliptic systems with bistable nonlinearity

open access: yesMathematics in Engineering, 2020
In this paper we prove the existence of infinitely many saddle-shaped positive solutions for non-cooperative nonlinear elliptic systems with bistable nonlinearities in the phase-separation regime.
Nicola Soave
doaj   +1 more source

Eigenvalues of an elliptic system [PDF]

open access: yesMathematische Zeitschrift, 2003
We describe the spectrum of a non-self-adjoint elliptic system on a finite interval. Under certain conditions we find that the eigenvalues form a discrete set and converge asymptotically at infinity to one of several straight lines. The eigenfunctions need not generate a basis of the relevant Hilbert space, and the larger eigenvalues are extremely ...
openaire   +4 more sources

Existence, uniqueness and optimal regularity results for very weak solutions to nonlinear elliptic systems [PDF]

open access: yes, 2016
We establish existence, uniqueness and optimal regularity results for very weak solutions to certain nonlinear elliptic boundary value problems. We introduce structural asymptotic assumptions of Uhlenbeck type on the nonlinearity, which are sufficient ...
Miroslav Bul'ivcek   +2 more
semanticscholar   +1 more source

Fundamental matrices and Green matrices for non-homogeneous elliptic systems [PDF]

open access: yesPublicacions matemàtiques, 2016
In this paper, we establish existence, uniqueness, and scale-invariant estimates for fundamental solutions of non-homogeneous second order elliptic systems with bounded measurable coefficients in $\mathbb{R}^n$ and for the corresponding Green functions ...
Blair Davey, Jonathan Hill, S. Mayboroda
semanticscholar   +1 more source

A global characteristic of g‐limit operators for quasilinear potential elliptic systems

open access: yesMathematical Modelling and Analysis, 2002
The paper considers a family of quasilinear potential elliptic systems and uses the fact that all G‐limit operators for this family can be characterized by means of gradients of convex functions F (locally with respect to the spatial co‐ordinates). It is
U. Raitums
doaj   +1 more source

On doubling inequalities for elliptic systems

open access: yesJournal of Mathematical Analysis and Applications, 2009
13 pages, submitted for ...
ALESSANDRINI, GIOVANNI   +3 more
openaire   +5 more sources

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