Results 31 to 40 of about 10,537,968 (352)
On the limit cycles for a class of eighth-order differential equations
Moroccan Journal of Pure and Applied Analysis, 2020 In this article, we provide sufficient conditions for the existence of periodic solutions of the eighth-order differential equation x(8)-(1+p2+λ2+μ2)x(6)+Ax⃜+Bx¨+p2λ2μ2x=ɛF(t,x,x˙,x¨,x⃛,x⃜,x(5),x(6)x(7)),{x^{\left( 8 \right)}} - \left( {1 + {p^2 ...
Berrehail Chems Eddine +2 more
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Limit cycles in piecewise smooth perturbations of a class of cubic differential systems
Electronic Journal of Qualitative Theory of Differential Equations, 2023 In this paper, we study the bifurcation of limit cycles from a class of cubic integrable non-Hamiltonian systems under arbitrarily small piecewise smooth perturbations of degree $n$.
Dan Sun, Yunfei Gao, Linping Peng, Li Fu
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Ensemble average theory of gravity [PDF]
Physical Review D, 2016 6 pages, typos corrected, comments are welcome, replaced with published ...
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On the theory of average case complexity
[1989] Proceedings. Structure in Complexity Theory Fourth Annual Conference, 1992 AbstractThis paper takes the next step in developing the theory of average case complexity initiated by Leonid A. Levin. Previous works have focused on the existence of complete problems. We widen the scope to other basic questions in computational complexity.
Michael Luby +3 more
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The Proximal Average: Basic Theory [PDF]
SIAM Journal on Optimization, 2008 The recently introduced proximal average of two convex functions is a convex function with many useful properties. In this paper, we introduce and systematically study the proximal average for finitely many convex functions. The basic properties of the proximal average with respect to the standard convex-analytical notions (domain, Fenchel conjugate ...
Xianfu Wang +3 more
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Modeling Nondilute Species Transport Using the Thermodynamically Constrained Averaging Theory
Water Resources Research, 2018 Nondilute transport in porous media results in fronts that are much sharper in space and time than the corresponding transport of a conservative, nonreactive dilute species.
T. Weigand +7 more
semanticscholar +1 more source
A theory of average growth rate indices [PDF]
Mathematical Social Sciences, 2014 Abstract This paper develops an axiomatic theory of an economic variable average growth rate (average rate of change) measurement. The obtained structures generalize the conventional measures for average rate of growth (such as the difference quotient, and the continuously compounded growth rate) to an arbitrary domain of the underlying variable and ...
Mikhail V. Sokolov +2 more
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Randomness in nuclei and in the quark-gluon plasma [PDF]
, 2002 The issue of averaging randomness is addressed, mostly in nuclear physics, but shortly also in QCD. The Feshbach approach, so successful in dealing with the continuum spectrum of the atomic nuclei ("optical model"), is extended to encompass bound states ...
De Pace, A., Molinari, A.
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International Journal of Bifurcation and Chaos in Applied Sciences and Engineering, 2018 We provide new results in studying a kind of stability of periodic orbits provided by the higher-order averaging theory.
M. R. Cândido, J. Llibre
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System Reliability Analysis Based On Weibull Distribution and Hesitant Fuzzy Set [PDF]
International Journal of Mathematical, Engineering and Management Sciences, 2018 This work deals with the hesitant fuzzy number and averaging operator and fuzzy reliability with the help of Weibull lifetime distribution. Fuzzy reliability function and triangular hesitant fuzzy number also computed with α-cut set of the proposed ...
Akshay Kumar, Mangey Ram
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