Results 91 to 100 of about 74,153 (309)
A Comparison Theorem for Oscillation of the Even-Order Nonlinear Neutral Difference Equation
Abstract and Applied Analysis, 2014 A comparison theorem on oscillation behavior is firstly established for a class of even-order nonlinear neutral delay difference equations. By using the obtained comparison theorem, two oscillation criteria are derived for the class of even-order ...
Quanxin Zhang
doaj +1 more source
Convergence and stability of stochastic parabolic functional differential equations
Advances in Difference Equations, 2018 The main purpose of this paper is to investigate the convergence and stability of stochastic parabolic functional differential equations. Firstly, a comparison theorem in the context of Lyapunov-like function together with differential inequality is ...
Zhao Li, Shuyong Li
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A Quantitative Comparison Theorem For Nonlinear Equations
, 2007 this paper is to establish a quantitative comparison theorem in which the effect of p i and q i is taken into account. This quantitative comparison theorem is more delicate than Theorem A in [10], and also provides some further applications to the non ...
Xiaodong Zhu
core
Price Premiums for Single‐Name and Compound‐Name Geographical Indications in Swiss Cheese Trade
Agribusiness, EarlyView.ABSTRACT Geographical indications (GIs) have become increasingly important in agri‐food markets, especially in Europe. For Swiss cheese imports and exports, we analyze whether GIs are associated with higher trade prices. We find that price premiums can be obtained for both exports and imports. However, this is only the case for cheeses with single name
Judith Irek
wiley +1 more source
Agribusiness, EarlyView.ABSTRACT The US hemp market is a new and nascent industry that has been devoid of research for about half a century. This study examined the effects of exogenous shock on price at each phase of the value chain—Farm (hemp biomass), and its impact on prices at other phases of the value chain—Intermediary Processor (crude cannabidiol hemp) and Final ...
Solomon Odiase +2 more
wiley +1 more source
Linear free divisors and the global logarithmic comparison theorem [PDF]
, 2009 A complex hypersurface D in C-n is a linear free divisor (LFD) if its module of logarithmic vector fields has a global basis of linear vector fields. We classify all LFDs for n at most 4. By analogy with Grothendieck's comparison theorem, we say that
D. Mond +12 more
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Advanced Intelligent Discovery, EarlyView.This perspective highlights how knowledge‐guided artificial intelligence can address key challenges in manufacturing inverse design, including high‐dimensional search spaces, limited data, and process constraints. It focused on three complementary pillars—expert‐guided problem definition, physics‐informed machine learning, and large language model ...
Hugon Lee +3 more
wiley +1 more source
Special Comparison Theorem for the Dirac Equation [PDF]
Physical Review Letters, 1999 If a central vector potential V(r,a) in the Dirac equation is monotone in a parameter 'a', then a discrete eigenvalue E(a) is monotone in 'a'. For such a special class of comparisons, this generalizes an earlier comparison theorem that was restricted to node free states. Moreover, the present theorem applies to every discrete eigenvalue.
openaire +6 more sources
Advanced Intelligent Discovery, EarlyView.In this work, the Doubao large language model (LLM) is involved in the formula derivation processes for Hubbard U determination regarding the second‐order perturbations of the chemical potential. The core ML tool is optimized for physical domain knowledge, which is not limited to parameter prediction but rather serves as an interactive physical theory ...
Mingzi Sun +8 more
wiley +1 more source
Comparison theorems for second-order neutral differential equations of mixed type
Electronic Journal of Differential Equations, 2010 Three comparison theorems are established for the oscillation of the second-order neutral differential equations of mixed type $$ ig(r(t)[x(t)+p_1(t)x(t-sigma_1)+p_2(t)x(t+sigma_2)]'ig)' +q_1(t)x(t-sigma_3) +q_2(t)x(t+sigma_4)=0. $$ Our results are
Tongxing Li
doaj