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This category marks all the ICTP posts containing the pdf file of the paper/book.

On the determination of the orbital elements in the light travel time effect

4 years ago

Abstract This paper deals with the light travel time effect in binary systems with variable components. The methods for estimation…

Positive radial solutions for Dirichlet problems via a Harnack-type inequality

4 years ago

Abstract We deal with the existence and localization of positive radial solutions for Dirichlet problems involving \(\phi\)-Laplacian operators in a…

Semilinear problems with poly-Laplace type operators

4 years ago

AbstractThe paper deals with semilinear operator equations involving iterates of a strongly monotone symmetric linear operator. In particular there are…

Componentwise localization of solutions to systems of operator inclusions via Harnack type inequalities

4 years ago

Abstract We establish compression-expansion type fixed point theorems for systems of operator inclusions with decomposable multivalued maps. The approach is…

Iterates of multidimensional approximation operators via Perov theorem

4 years ago

AbstractThe starting point is an approximation process consisting of linear and positive operators. The purpose of this note is to…

On some applications of the controllability principle for fixed point equations

4 years ago

Abstract The aim of this paper is to draw attention to a general principle for solving control problems for operator…

Chebfun Solutions to a Class of 1D Singular and Nonlinear Boundary Value Problems

4 years ago

AbstractThe Chebyshev collocation method implemented in Chebfun is used in order to solve a class of second order one-dimensional singular…

Stationary Kirchhoff equations and systems with reaction terms

4 years ago

AbstractIn this paper, the operator approach based on the fixed point principles of Banach and Schaefer is used to establish…

Componentwise localization of critical points for functionals defined on product spaces

4 years ago

AbstractA new notion of linking is introduced to treat minima as minimax points in a unitary way. Critical points are…

Krasnoselskii type theorems in product Banach spaces and applications to systems of nonlinear transport equations and mixed fractional differential equations

4 years ago

AbstractIn this paper, we use a new technique for the treatment of systems based on the advantage of vector-valued norms…

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