Results 1 to 10 of about 540 (60)
Optimal control and bifurcation diagram for a model nonlinear fractional SIRC [PDF]
Alexandria Engineering Journal, 2020 In this article, the optimal control for nonlinear SIRC model is studied in fractional order using the Caputo fractional derivative. Graph signal flow is given of the model and simulated by Simulink/Matlab which helps in discussing the topological ...
A.M.S. Mahdy +3 more
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Journal of Inequalities and Applications, 2011 In this paper, an efficient modified nonlinear conjugate gradient method for solving unconstrained optimization problems is proposed. An attractive property of the modified method is that the generated direction in each step is always descending without ...
Liu Jinkui, Wang Shaoheng
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Regularity-based spectral clustering and mapping the Fiedler-carpet
Special Matrices, 2022 We discuss spectral clustering from a variety of perspectives that include extending techniques to rectangular arrays, considering the problem of discrepancy minimization, and applying the methods to directed graphs. Near-optimal clusters can be obtained
Bolla Marianna +4 more
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Modeling and Simulation of a Ternary System for Macromolecular Microsphere Composite Hydrogels
, 2021 In this paper, we study a ternary system for macromolecular microsphere composite (MMC) hydrogels. Assuming that the graft chains are distributed randomly around the macromolecular microspheres, a phase transition model was constructed.
Guanghua Ji
semanticscholar +1 more source
Rigid continuation paths II. structured polynomial systems
Forum of Mathematics, Pi, 2023 This work studies the average complexity of solving structured polynomial systems that are characterised by a low evaluation cost, as opposed to the dense random model previously used.
Peter Bürgisser +2 more
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Extended convergence of a sixth order scheme for solving equations under ω–continuity conditions
Moroccan Journal of Pure and Applied Analysis, 2022 The applicability of an efficient sixth convergence order scheme is extended for solving Banach space valued equations. In previous works, the seventh derivative has been used not appearing on the scheme. But we use only the first derivative that appears
Regmi Samundra +3 more
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The iterative methods for solving nonlinear matrix equation X+A⋆X−1A+B⋆X−1B=Q
Advances in Differential Equations, 2013 In this paper, we study the matrix equation X+A⋆X−1A+B⋆X−1B=Q, where A and B are square matrices, and Q is a positive definite matrix, and propose the iterative methods for finding positive definite solutions of the matrix equation.
S. Vaezzadeh +3 more
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Alexandria Engineering Journal, 2020 Fractional derivative has a memory and non-localization features that make it very useful in modelling epidemics’ transition. The kernel of Caputo-Fabrizio fractional derivative has many features such as non-singularity, non-locality and an exponential ...
M. Higazy, Maryam Ahmed Alyami
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Solving the 100 Swiss Francs Problem [PDF]
, 2011 Sturmfels offered 100 Swiss Francs in 2005 to a conjecture, which deals with a special case of the maximum likelihood estimation for a latent class model.
B. Buchberger +9 more
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Polyhedral Methods in Numerical Algebraic Geometry [PDF]
, 2008 In numerical algebraic geometry witness sets are numerical representations of positive dimensional solution sets of polynomial systems. Considering the asymptotics of witness sets we propose certificates for algebraic curves.
J. Verschelde
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