Results 41 to 50 of about 1,011,347 (168)

PERIODIC MINIMAL SURFACES IN SEMIDIRECT PRODUCTS [PDF]

open access: yesJournal of the Australian Mathematical Society, 2013
AbstractIn this paper we prove the existence of complete minimal surfaces in some metric semidirect products. These surfaces are similar to the doubly and singly periodic Scherk minimal surfaces in ${ \mathbb{R} }^{3} $. In particular, we obtain these surfaces in the Heisenberg space with its canonical metric, and in ${\mathrm{Sol} }_{3} $ with a one ...
openaire   +2 more sources

Subharmonics with Minimal Periods for Convex Discrete Hamiltonian Systems

open access: yesAbstract and Applied Analysis, 2013
We consider the subharmonics with minimal periods for convex discrete Hamiltonian systems. By using variational methods and dual functional, we obtain that the system has a -periodic solution for each positive integer , and solution of system has minimal
Honghua Bin
doaj   +1 more source

Beliefs and social behavior in a multi-period ultimatum game

open access: yesFrontiers in Behavioral Neuroscience, 2015
We conduct a multi-period ultimatum game in which we elicit players’ beliefs. Responders do not predict accurately the amount that will be offered to them, and do not get better in their predictions over time.
Ofer Haim Azar   +2 more
doaj   +1 more source

Fluid permeabilities of triply periodic minimal surfaces [PDF]

open access: yesPhysical Review E, 2005
It has recently been shown that triply periodic two-phase bicontinuous composites with interfaces that are the Schwartz primitive (P) and diamond (D) minimal surfaces are not only geometrically extremal but extremal for simultaneous transport of heat and electricity.
Jung, Y., Torquato, S.
openaire   +3 more sources

Multiplicity and minimality of periodic solutions to delay differential system

open access: yesElectronic Journal of Differential Equations, 2014
In this article, we study periodic solutions of a class of delay differential equations. By restricting our discussion on generalized Nehari Manifold, some sufficient conditions are obtained to guarantee the existence of infinitely many pairs of ...
Huafeng Xiao, Zhiming Guo
doaj  

Motion Periods of Planet Gear Fault Meshing Behavior

open access: yesSensors, 2018
Vibration sensors are, generally, fixed on the housing of planetary gearboxes for vibration monitoring. When a local fault occurred on the tooth of a planet gear, along with the system operating, the faulty tooth will mesh with the ring gear or sun gear ...
Mian Zhang, Kesheng Wang, Yaxin Li
doaj   +1 more source

Adrenal abscess in a preterm neonate with sepsis

open access: yesJournal of Pediatric Surgery Case Reports, 2021
The adrenal abscess is a rare complication of adrenal hemorrhage in the neonatal period. Due to its rare occurrence and non-specific signs, diagnosing and treating an adrenal abscess in the neonatal period might be challenging. We present herein a 3-week-
Asmir Jonuzi   +7 more
doaj   +1 more source

On almost periodicity and minimality for semiflows

open access: yes
This is the final version incorporating all the comments and suggestions by a very generous, anonymous reviewer which has enhanced the write-up of this ...
Auslander, Joseph, Nagar, Anima
openaire   +2 more sources

A Case of Minimally Progressive Prodromal Alzheimer’s Disease

open access: yesJournal of Alzheimer's Disease Reports, 2023
Prodromal Alzheimer’s disease (AD) is a neurodegenerative condition typically progressing to dementia within 3 years. We describe a case of a mild cognitive impairment (MCI) patient with biomarker evidence for amyloidosis, tau, and neurodegeneration who ...
Michael H. Rosenbloom, Terry Barclay
doaj   +1 more source

Instability of periodic minimals

open access: yesDiscrete and Continuous Dynamical Systems, 2013
We consider second-order Euler-Lagrange systems which are periodic in time. Their periodic solutions may be characterized as the stationary points of an associated action functional, and we study the dynamical implications of minimizing the action.
openaire   +1 more source

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