Results 41 to 50 of about 24,678 (193)

Stability of an AQCQ functional equation in non-Archimedean (n, β)-normed spaces

Demonstratio Mathematica, 2019
In this paper, we adopt direct method to prove the Hyers-Ulam-Rassias stability of an additivequadratic-cubic-quartic functional ...
Liu Yachai, Yang Xiuzhong, Liu Guofen
doaj   +1 more source

Zero mode in the time-dependent symmetry breaking of $\lambda\phi^4$ theory

, 2003
We apply the quartic exponential variational approximation to the symmetry breaking phenomena of scalar field in three and four dimensions. We calculate effective potential and effective action for the time-dependent system by separating the zero mode ...
D. Cormier, F. Cooper, F. Cooper, F. Cooper, G. J. Cheetham, Geon Hyoung Lee, Hyeong-Chan Kim, I. Stancu, J. Baacke, Jae Hyung Yee, M. Consoli, Sang Pyo Kim, So-Young Pi, T. Barnes, U. Ritschel   +14 more
core   +1 more source

Unveiling spatial heterogeneity in urban underground space development patterns and mechanisms for differentiated planning: A points of interest‐based study of Shanghai

Deep Underground Science and Engineering, EarlyView.
This study investigated the spatial patterns and development mechanisms of urban underground space (UUS) in Shanghai using underground points of interest data. It revealed distinct development mechanisms between the main city and suburbs, highlighting the need for differentiated UUS planning and policies to optimize underground space resources ...
Chenxiao Ma, Fangle Peng, Yongkang Qiao, Yunhao Dong   +3 more
wiley   +1 more source

AQCQ-Functional Equation in Non-Archimedean Normed Spaces

Abstract and Applied Analysis, 2010
We prove the generalized Hyers-Ulam stability of generalized mixed type of quartic, cubic, quadratic and additive functional equation in non-Archimedean spaces.
M. Eshaghi Gordji, R. Khodabakhsh, S.-M. Jung, H. Khodaei   +3 more
doaj   +1 more source

Dynamics of rapidly rotating Bose-Einstein condensates in a harmonic plus quartic trap

, 2005
A two-dimensional rapidly rotating Bose-Einstein condensate in a harmonic plus quartic trap is expected to have unusual vortex states that do not occur in a pure harmonic trap.
Alexander L. Fetter, D. R. Tilley, Jong-kwan Kim   +2 more
core   +1 more source

Relativistic center-vortex dynamics of a confining area law [PDF]

, 2003
We offer a physicists' proof that center-vortex theory requires the area in the Wilson-loop area law to involve an extremal area. Area-law dynamics is determined by integrating over Wilson loops only, not over surface fluctuations for a fixed loop ...
A. Comtet, B. Tekin, C.G. Callan, E. Witten, G. Mack, G. ’t Hooft, G. ’t Hooft, H.B. Nielsen, J. Ambjörn, J. Ambjörn, J. Greensite, J. Greensite, J. Polchinski, J.M. Cornwall, J.M. Cornwall, J.M. Cornwall, John M. Cornwall, K. Langfeld, M. Engelhardt, M. Lüscher   +19 more
core   +1 more source

Coherent Forecasting of Realized Volatility

Journal of Forecasting, EarlyView.
ABSTRACT The QLIKE loss function is the stylized favorite of the literature on volatility forecasting when it comes to out‐of‐sample evaluation and the state of the art model for realized volatility (RV) forecasting is the HAR model, which minimizes the squared error loss for in‐sample estimation of the parameters.
Marius Puke, Karsten Schweikert
wiley   +1 more source

Higgs stability-bound and fermionic dark matter

, 2018
Higgs-portal interactions of fermionic dark matter -- in contrast to fermions coupled via Yukawa interactions -- can have a stabilizing effect on the standard-model Higgs potential.
Held, Aaron, Sondenheimer, René
core   +1 more source

Optimization of Multi‐Millet Cookie Formulation Using Mixture Design and Their Physicochemical Characterization

Food Safety and Health, EarlyView.
Sensory‐driven optimization of multi‐millet cookie formulation using RSM. ABSTRACT The effect of the composition of multi‐millet flour on the sensory acceptability of gluten‐free cookies containing xanthan gum as a binding agent was investigated and optimized.
Akash Kumar, Shashi Shekhar Mishra, Rekha Kaushik, Rahul Mehra, Shiv Kumar   +4 more
wiley   +1 more source

A Note to Paper “On the Stability of Cubic Mappings and Quartic Mappings in Random Normed Spaces”

Journal of Inequalities and Applications, 2009
Recently, Baktash et al. (2008) proved the stability of the cubic functional equation f(2x+y)+f(2x−y)=2f(x+y)+2f(x−y)+12f(x) and the quartic functional equation f(2x+y)+f(2x−y)=4f(x+y)+4f(x−y)+24f(x)−6f(y) in random ...
R. Saadati, S. M. Vaezpour, Y. J. Cho
doaj   +1 more source