Results 31 to 40 of about 38,162 (310)
Representation of Algebraic Reasoning in Sets through Argumentation
International Journal of Contemporary Educational Research, 2022 The purpose of the current study is to examine the ways in which preservice middle school mathematics teachers (PMSMT) apply and represent algebraic reasoning in their solution processes for the problems in the concept of sets.
Tugba Uygun, Pinar Guner
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Entropy, 2021 We extend the operational matrices technique to design a spectral solution of nonlinear fractional differential equations (FDEs). The derivative is considered in the Caputo sense.
Hammad Khalil +3 more
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Converting DAE models to ODE models: application to reactive Rayleigh distillation [PDF]
, 2013 This paper illustrates the application of an index reduction method to some differential algebraic equations (DAE) modelling the reactive Rayleigh distillation.
Monfreda, Fabien +3 more
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IEEE Access, 2018 Underwater source localization problems are complicated and challenging: 1) the sound propagation speed is often unknown and the unpredictable ocean current might lead to the uncertainties of sensor parameters (i.e., position and velocity); 2) the ...
Bingbing Zhang +3 more
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Algebraic solutions to recursion schemes
Journal of Computer and System Sciences, 1987 The search for solutions of the set of equations associated with recursion schemes of programs and the description of the set of such solutions constitute one of the principal problems in modern schematics. The paper deals with the algebraic theory of recursion schemes which includes tree algebras and the algebras obtained from congruence on trees ...
Guessarian, Irene, Benson, D.
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A general theory of André’s solution algebras [PDF]
Annales de l'Institut Fourier, 2021 We extend Yves André’s theory of solution algebras in differential Galois theory to a general Tannakian context. As applications, we establish analogues of his correspondence between solution fields and observable subgroups of the Galois group for iterated differential equations in positive characteristic and for difference equations.
Nagy, Levente, Szamuely, Tamás
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Современная математика: Фундаментальные направления, 2022 In the paper, we investigate the question of obtaining the algebraic condition for the exponential stability of the numerical solution of the upwind difference scheme for the mixed problem posed for onedimensional symmetric t-hyperbolic systems with ...
R. D. Aloev, D. E. Nematova
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Sweeping algebraic curves for singular solutions
Journal of Computational and Applied Mathematics, 2010 Many problems give rise to polynomial systems. These systems often have several parameters and we are interested to study how the solutions vary when we change the values for the parameters. Using predictor-corrector methods we track the solution paths. A point along a solution path is critical when the Jacobian matrix is rank deficient.
Kathy Piret, Jan Verschelde
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, 2006 This paper is concerned with a characterization of all symmetric solutions to the discrete-time algebraic Riccati equation (DARE). Dissipation theory and quadratic difference forms from the behavioral approach play a central role in this paper. Along the
Osamu Kaneko +7 more
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Discrete integrable systems and Poisson algebras from cluster maps [PDF]
, 2014 We consider nonlinear recurrences generated from cluster mutations applied to quivers that have the property of being cluster mutation-periodic with period 1.
Fordy, AP +3 more
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