Zobrazeno 1 - 10
of 3 046
pro vyhledávání: '"A, Ciampa"'
Publikováno v:
Mathematics in Engineering 6(4), 494-509 (2024)
The aim of this note is to study the Cauchy problem for the 2D Euler equations under very low regularity assumptions on the initial datum. We prove propagation of regularity of logarithmic order in the class of weak solutions with $L^p$ initial vorti
Externí odkaz:
http://arxiv.org/abs/2402.07622
We prove the existence of large amplitude bi-periodic traveling waves (stationary in a moving frame) of the two-dimensional non-resistive Magnetohydrodynamics (MHD) system with a traveling wave external force with large velocity speed $\lambda (\omeg
Externí odkaz:
http://arxiv.org/abs/2401.17943
Autor:
Ciampa, Dan (AUTHOR), Bryant, Adam1 (AUTHOR)
Publikováno v:
Harvard Business Review. Jul/Aug2024, Vol. 102 Issue 4, p44-52. 9p. 2 Color Photographs.
Autor:
Ciampa, Gennaro, Lucà, Renato
Publikováno v:
Journal of Functional Analysis 287 (2024) 110610
We introduce a class of divergence-free vector fields on $\mathbb{R}^3$ obtained after a suitable localization of Beltrami fields. First, we use them as initial data to construct unique global smooth solutions of the three dimensional Navier-Stokes e
Externí odkaz:
http://arxiv.org/abs/2311.01369
The goal of this paper is to study weak solutions of the Fokker-Planck equation. We first discuss existence and uniqueness of weak solutions in an irregular context, providing a unified treatment of the available literature along with some extensions
Externí odkaz:
http://arxiv.org/abs/2310.12625
Autor:
Gaspare Alfì, Danilo Menicucci, Dalì Antonia Ciampa, Vito Di Giura, Giulia Marconcini, Claudio Urbani, Fausto Bogazzi, Angelo Gemignani
Publikováno v:
Endocrines, Vol 5, Iss 3, Pp 408-417 (2024)
Acromegaly is a rare endocrine syndrome characterized by unrestrained growth hormone (GH) secretion from a GH-secreting pituitary neuroendocrine tumor (PitNET). Data on sleep disorders are scanty and mainly linked to Obstructive Sleep Apnea Syndrome
Externí odkaz:
https://doaj.org/article/ec677274d48e4b0dbbbadfb587ce6560
Publikováno v:
J. Evol. Equ. 24(1), 1 (2024)
We study the Cauchy problem for the advection-diffusion equation $\partial_t u + \mathrm{div} (u b ) = \Delta u$ associated with a merely integrable divergence-free vector field $b$ defined on the torus. We discuss existence, regularity and uniquenes
Externí odkaz:
http://arxiv.org/abs/2306.15529
Publikováno v:
Math. Meth. Appl. Sci., 1-20 (2024)
We introduce models for viscoelastic materials, both solids and fluids, based on logarithmic stresses to capture the elastic contribution to the material response. The matrix logarithm allows to link the measures of strain, that naturally belong to a
Externí odkaz:
http://arxiv.org/abs/2306.14049
Autor:
Smart, B. M., Haffner, L. M., Barger, K. A., Ciampa, D. A., Hill, A. S., Krishnarao, D., Madsen, G. J.
Publikováno v:
ApJ 948 118 (2023)
The Large Magellanic Cloud (LMC) has an extensive H$_{\alpha}$ emission halo that traces an extended, warm ionized component of its interstellar medium. Using the Wisconsin H$_{\alpha}$ Mapper (WHAM) telescope, we present the first kinematic \ha\ sur
Externí odkaz:
http://arxiv.org/abs/2305.09829
Autor:
Ciampa, Gennaro
Publikováno v:
Hyperbolic Problems: Theory, Numerics, Applications, Volume I. HYP 2022. SEMA SIMAI Springer Series, vol 34. Springer, Cham, 193-203 (2024)
We construct examples of smooth periodic solutions to the Magnetohydrodynamic equations in dimension 2 with positive resistivity for which the topology of the magnetic lines changes under the flow. By Alfv\'en's theorem this is known to be impossible
Externí odkaz:
http://arxiv.org/abs/2303.02999