Results 11 to 20 of about 722,193 (223)
Journal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022 Abstract Purpose To assess whether the joint application of hybrid iterative reconstruction (HIR) and an adaptive filter (AF) could reduce streak artifacts and improve image quality of neck‐and‐shoulder computed tomography (CT). Methods This study included 96 patients with suspicious neck lesions who underwent a routine nonenhanced scan on a 64‐slice ...
Wenfeng Jin +6 more
wiley +1 more source
Elliptic supersymmetric integrable model and multivariable elliptic functions [PDF]
Prog. Theor. Exp. Phys. 2017, 123A01, 2017 We investigate the elliptic integrable model introduced by Deguchi and Martin, which is an elliptic extension of the Perk-Schultz model. We introduce and study a class of partition functions of the elliptic model by using the Izergin-Korepin analysis. We show that the partition functions are expressed as a product of elliptic factors and elliptic Schur-
arxiv +1 more source
Essays on the theory of elliptic hypergeometric functions [PDF]
Uspekhi Mat. Nauk 63 no 3 (2008) 3-72 (Russian Math. Surveys 63
no. 3 (2008) 405-472), 2008 We give a brief review of the main results of the theory of elliptic hypergeometric functions -- a new class of special functions of mathematical physics. We prove the most general univariate exact integration formula generalizing Euler's beta integral, which is called the elliptic beta integral.
arxiv +1 more source
On Lane–Emden Systems with Singular Nonlinearities and Applications to MEMS
Advanced Nonlinear Studies, 2018 In this paper we analyze the Lane–Emden ...
do Ó João Marcos, Clemente Rodrigo
doaj +1 more source
A global characteristic of g‐limit operators for quasilinear potential elliptic systems
Mathematical 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
Coercive elliptic systems with gradient terms
Advances in Nonlinear Analysis, 2017 In this paper we give a classification of positive radial solutions of the following system:
Filippucci Roberta, Vinti Federico
doaj +1 more source
Riemann–Hilbert boundary value problem for multidimensional elliptic systems of equations
Lietuvos Matematikos Rinkinys, 2023 Multidimensional analogues of Cauchy–Riemann quations and of Riemann–Hilbert boundary value problem are studied. Their relation to the scalar boundary value problem is demonstrated.
Eugenijus Paliokas
doaj +1 more source
Relativistic interacting integrable elliptic tops [PDF]
Theoret. and Math. Phys., 201:2 (2019) 1565-1580, 2019 We propose relativistic generalization of integrable systems describing $M$ interacting elliptic ${\rm gl}(N)$ tops of the Euler-Arnold type. The obtained models are elliptic integrable systems, which reproduce the spin elliptic ${\rm GL}(M)$ Ruijsenaars-Schneider model for $N=1$ case, while in the $M=1$ case they turn into relativistic integrable ...
arxiv +1 more source
On elliptic solutions of the associative Yang-Baxter equation [PDF]
, 2021 We give a direct proof of the fact that elliptic solutions of the associative Yang-Baxter equation arise from appropriate spherical orders on an elliptic curve.
arxiv +1 more source
On the Origin of Isophotal Shapes in Elliptical Galaxies [PDF]
Mon.Not.Roy.Astron.Soc. 359 (2005) 1379-1385, 2004 Using semi-analytical models of galaxy formation, the origin of boxy and disky elliptical galaxies is investigated. We find that the simple scenario, motivated by N-body simulations, in which the isophotal shape is only dependent on the mass ratio of the last major merger, is not able to reproduce the observation that the fraction of boxy and disky ...
arxiv +1 more source