Results 81 to 90 of about 2,135 (188)

Quasilinear elliptic eigenvalue problems

open access: yesCommentarii Mathematici Helvetici, 1983
A generalized Palais-Smale type compactness condition is applied to prove the existence of critical points of functionals (summation convection) \[ E(u)=frac{1}{2}\int_{\Omega}a^{\alpha \beta}(x,u)\partial_{\alpha}u^ i\partial_{\beta}u^ idx\quad on\quad H_ 0^{1,2}(\Omega,{\mathbb{R}}^ N) \] subject to a nonlinear constraint \(G(u)=1\).
openaire   +2 more sources

Taylor wavelet quasilinearization method for solving tumor growth model of fractional order

open access: yesResults in Control and Optimization
This study introduces an innovative approach combining Taylor wavelet with quasilinearization, aiming to enhance the fractional-order tumor growth model.
Pooja Yadav, Shah Jahan, Mohammad Izadi
doaj   +1 more source

Existence and approximation of solutions of second order nonlinear Neumann problems

open access: yesElectronic Journal of Differential Equations, 2005
We study existence and approximation of solutions of some Neumann boundary-value problems in the presence of an upper solution $eta$ and a lower solution $alpha$ in the reversed order ( $alphageq eta$).
Rahmat Ali Khan
doaj  

Can Computer Algebra be Liberated from its Algebraic Yoke ?

open access: yes, 2005
So far, the scope of computer algebra has been needlessly restricted to exact algebraic methods. Its possible extension to approximate analytical methods is discussed.
Barrere, R.
core   +1 more source

A new approach for solving nonlinear Thomas-Fermi equation based on fractional order of rational Bessel functions

open access: yes, 2016
In this paper, the fractional order of rational Bessel functions collocation method (FRBC) to solve Thomas-Fermi equation which is defined in the semi-infinite domain and has singularity at $x = 0$ and its boundary condition occurs at infinity, have been
Delkhosh, M.   +3 more
core   +1 more source

Positive Solutions of Nonlinear Elliptic Eigenvalue Problems [PDF]

open access: yes, 1970
We shall study a class of mildly nonlinear elliptic eigenvalue problems which are suggested by several recently occurring problems concerning the steady state temperature distribution of a physical medium in which heat is being generated ...
Cohen, Donald S., Simpson, R. Bruce
core  

Identification of a linear system from sampled noisy data, part C Final project report [PDF]

open access: yes
Step input linear system modeling from nonlinear system sampled noisy data based on method of perturbation or quasilinearization of automatic control system ...
Luckinbill, D. L., Sumaria, V. H.
core   +1 more source

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