Results 41 to 50 of about 90,228 (264)
Limit cycles for fourth-order autonomous differential equations
Electronic Journal of Differential Equations, 2012 We provide sufficient conditions for the existence of periodic solutions of the fourth-order differential equation $$ ddddot x -(lambda+mu) dddot x +(1+lambda mu)ddot x -(lambda+mu)dot x+lambda mu x = varepsilon F(x, dot x, ddot x, dddot x ...
Jaume Llibre, Amar Makhlouf
doaj
An approach to Atanassov's interval-valued intuitionistic fuzzy multi-attribute decision making based on prospect theory [PDF]
International Journal of Computational Intelligence Systems, 2015 Prospect theory is a very effective method to express behavioral decision making under uncertainty. This paper attempts to develop a method to multi-attribute decision making with Atanassov's interval-valued intuitionistic fuzzy information using ...
Fanyong Meng +2 more
doaj +1 more source
Coherent Averaging: an Alternative to the Average Hamiltonian Theory
, 2011 4 pages, 1 ...
Khitrin, A. K. +2 more
openaire +2 more sources
Averages of characteristic polynomials in random matrix theory [PDF]
Communications on Pure and Applied Mathematics, 2005 We compute averages of products and ratios of characteristic polynomials associated with Orthogonal, Unitary, and Symplectic Ensembles of Random Matrix Theory. The pfaffian/determinantal formulas for these averages are obtained, and the bulk scaling asymptotic limits are found for ensembles with Gaussian weights.
Borodin, A., Strahov, E.
openaire +4 more sources
Impact of Metastatic Patterns on Survival and Response to Therapy in Neuroblastoma
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background While the presence of metastases in neuroblastoma (NB) is a well‐established prognostic factor, the clinical significance of dissemination patterns and tumour burden and their impact on response and survival remains poorly understood.
Mariona Morell‐Daniel +15 more
wiley +1 more source
IEEE Access, 2018 Aggregation of intuitionistic fuzzy information is a hot topic in Atanassov's intuitionistic fuzzy set theory, which has attracted much interest from researchers in recent years. In this paper, a series of new aggregation operators and weighted averaging
Cheng-Li Fan +4 more
doaj +1 more source
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Together, leukemia and lymphoma account for 38.7% of newly diagnosed pediatric cancer cases in the United States each year. Many caregivers utilize online resources to inform medical health decisions. Understanding the readability of these materials is critical to ensuring comprehensible patient education.
Chloe Strege +6 more
wiley +1 more source
Periodic orbits near equilibria via averaging theory of second order
Mathematical Modelling and Analysis, 2012 Lyapunov, Weinstein and Moser obtained remarkable theorems giving sufficient conditions for the existence of periodic orbits emanating from an equilibrium point of a differential system with a first integral.
Luis Barreira +2 more
doaj +1 more source
Averaging theory and catastrophes
Journal of Differential EquationsWhen a dynamical system is subject to a periodic perturbation, the averaging method can be applied to obtain an autonomous leading order "guiding system", placing the time dependence at higher orders. Recent research focused on investigating invariant structures in non-autonomous differential systems arising from hyperbolic structures in the guiding ...
Pedro C.C.R. Pereira +2 more
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Random path averaging in multiple-scattering theory [PDF]
Physical Review B, 1997 11 pages ...
Podolsky, V. S., Lisyansky, A. A.
openaire +2 more sources