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quasi-linear

High accuracy quasi variable mesh method for the system of 1D quasi linear parabolic partial differential equations based on off step spline in compression approximations

High accuracy quasi variable mesh method for the system of 1D quasi linear parabolic partial differential equations based on off step spline in compression approximations

... D quasi-linear parabolic equations and in those methods the consistency equation is only second-order accurate and the method is not directly applicable to singular problems, which is a main drawback of ...

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Electron pairing in mirror modes: surpassing the quasi linear limit

Electron pairing in mirror modes: surpassing the quasi linear limit

... saturates quasi-linearly at very low magnetic level, while forming elongated magnetic bubbles which trap the electron compo- nent to perform an adiabatic bounce motion along the mag- netic ...the ...

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Asymptotic behavior for third order quasi linear differential equations

Asymptotic behavior for third order quasi linear differential equations

... In this paper, a class of third-order quasi-linear differential equations with continuously distributed delay is studied. Applying the generalized Riccati transformation, integral averaging technique of ...

8

Quasi-Linear PCA: Low Order Spline’s Approach to Non-Linear Principal Components

Quasi-Linear PCA: Low Order Spline’s Approach to Non-Linear Principal Components

... Abstract—Nonlinear Principal Components Analysis (PCA) addresses the nonlinearity problem by relaxing the linear restrictions on standard PCA. A new approach on this subject is proposed in this paper, ...

5

Oscillation of higher order quasi linear neutral differential equations

Oscillation of higher order quasi linear neutral differential equations

... RESEARCH Open Access Oscillation of higher order quasi linear neutral differential equations Guojing Xing1, Tongxing Li1,2 and Chenghui Zhang1* * Correspondence zchui@sdu edu cn 1Shandong University,[.] ...

10

Quasi linear SPDEs in divergence form

Quasi linear SPDEs in divergence form

... We develop a solution theory in Hölder spaces for a quasi-linear stochastic PDE driven by an additive noise. The key ingredients are two deterministic PDE lemmas which establish a priori Hölder bounds for a ...

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A Derivative-free Algorithm for Finding Least Squares Solutions of Quasi-linear and Linear Systems

A Derivative-free Algorithm for Finding Least Squares Solutions of Quasi-linear and Linear Systems

... solving quasi-linear systems is challenging only for systems with three or more equations and unknowns, visualization of algorithms advance is not ...

11

A class of quasi variable mesh methods based on off step discretization for the numerical solution of fourth order quasi linear parabolic partial differential equations

A class of quasi variable mesh methods based on off step discretization for the numerical solution of fourth order quasi linear parabolic partial differential equations

... Owing to their great importance and wide range of applications, the attention of many physicists and mathematicians has been attracted to the studies of such problems. The closed-form solutions to fourth-order PDEs are ...

29

Optimal control of nonsmooth system governed by quasi linear elliptic equations

Optimal control of nonsmooth system governed by quasi linear elliptic equations

... In this paper, we discuss a class of optimal control problems of nonsmooth systems governed by quasi-linear elliptic partial differential equations, give the existence of the problem.. T[r] ...

8

Isothermal Reactor Network Synthesis Using Coupled NonDominated Sorting Genetic Algorithm-II (NSGAII) with Quasi Linear Programming (LP) Method

Isothermal Reactor Network Synthesis Using Coupled NonDominated Sorting Genetic Algorithm-II (NSGAII) with Quasi Linear Programming (LP) Method

... with quasi linear programming (LP) method for handling continuous ...The quasi LP consists of an LP by adding a search loop to find the best reactor conversions as well as split and recycle ratios ...

19

On Optimal Control of Quasi-Linear Elliptic Equation with Variable px -Laplacian

On Optimal Control of Quasi-Linear Elliptic Equation with Variable px -Laplacian

... Abstract—We consider an optimal control problem for quasi- linear elliptic equation containing the p-Laplacian with variable exponent p = p(x). The exponent p(x) are used as the controls in L 1 (Ω). The ...

6

Solutions for the quasi linear elliptic problems involving the critical Sobolev exponent

Solutions for the quasi linear elliptic problems involving the critical Sobolev exponent

... have been obtained, which provide us opportunities to understand the singular problems. However, compared with the semilinear case, the quasi-linear problems related to Hardy inequality are more complicated ...

20

Identification of the unknown coefficient in a quasi linear parabolic equation by a semigroup approach

Identification of the unknown coefficient in a quasi linear parabolic equation by a semigroup approach

... any kind of a boundary value problem with different type of boundary conditions. The semigroup approach for inverse problems for the identification of unknown coefficient in a quasi-linear parabolic equations ...

7

On resonant interactions of ions with plasma waves in a reduced quasi-linear theory

On resonant interactions of ions with plasma waves in a reduced quasi-linear theory

... It is well known that the protons in the high-speed solar wind reveal highly skewed and anisotropic VDFs, and that the heavy ions move faster and have higher temperatures than the protons. For reviews of these solar wind ...

6

Sparse signals recovered by non convex penalty in quasi linear systems

Sparse signals recovered by non convex penalty in quasi linear systems

... few linear measurements far less than the dimension of the ambient space of the ...the linear model is no longer ...the linear circumstance, this nonlinear compressed sensing is much more difficult, in ...

11

On Henig Regularization of Material Design Problems for Quasi Linear p Biharmonic Equation

On Henig Regularization of Material Design Problems for Quasi Linear p Biharmonic Equation

... As was shown in the recent publication [7], the proposed approach is numerically viable for state-constrained optimal control problems with the state equation given by linear partial differential equations. In ...

24

New oscillation theorems for second order quasi linear difference equations with sub linear neutral term

New oscillation theorems for second order quasi linear difference equations with sub linear neutral term

... In this paper, by using a Riccati type transformation and the discrete mean value theorem we have established some new oscillation criteria for more general second order neutral difference equations. The obtained results ...

10

Computing  Jacobi's  \theta  in  quasi-linear  time

Computing Jacobi's \theta in quasi-linear time

... in quasi-optimal time in P , but its running time depends on z and τ ; we then use this algorithm as a subroutine to build a quasi-optimal algorithm with complexity independent of z and τ , provided τ ∈ F ...

30

Existence of nontrivial solutions for quasi-linear resonant
problems

Existence of nontrivial solutions for quasi-linear resonant problems

... Combining the minimax arguments and the Morse Theory, by computing the critical groups at zero, we establish the existence of a nontrivial solution for a class of Dirichlet boundary valu[r] ...

10

Existence and Nonexistence of Positive Solutions for Singular -Laplacian Equation in

Existence and Nonexistence of Positive Solutions for Singular -Laplacian Equation in

... Santos, “Non-existence and existence of entire solutions for a quasi-linear problem with singular and super-linear terms,” Nonlinear Analysis: Theory, Methods & Applications , vol.. [r] ...

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