Results 261 to 270 of about 299,219 (282)
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Boundedness and unboundedness in polynomial differential systems
Nonlinear Analysis: Theory, Methods & Applications, 1984A differential system is bounded if all of its solutions are bounded [as time increases], unbounded if there is an unbounded solution. Suppose x is an n-vector, H(x) is a homogeneous vector polynomial, P(x) is a polynomial of lower degree. The boundedness or unboundedness of the polynomial system (1), \(x'=P(x)+H(x)\), can be determined by the type ...
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Limit Cycles for a Discontinuous Quintic Polynomial Differential System
Qualitative Theory of Dynamical Systems, 2019This paper studies the maximum number of limit cycles that bifurcate from a periodic annulus for a discontinuous quintic differential system. Using the first-order averaging method, the author proves that 8 is a lower bound of the maximum number and 10 is an upper bound.
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Brain and other central nervous system tumor statistics, 2021
Ca-A Cancer Journal for Clinicians, 2021Kimberly D Miller +2 more
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Polynomial differential systems with even degree have no global centers
Journal of Mathematical Analysis and Applications, 2021Jaume Llibre, Claudia Valls
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Hypercalcemia and cancer: Differential diagnosis and treatment
Ca-A Cancer Journal for Clinicians, 2018Sarah B Fisher, Nancy D Perrier, Facs
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Gradient Structures Associated with a Polynomial Differential Equation
Mathematics, 2020Savin Treanta
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The Wiener--Askey Polynomial Chaos for Stochastic Differential Equations
SIAM Journal of Scientific Computing, 2002Dongbin Xiu
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