# 1983

## A dual proof for the linearization of the convexity spaces

Abstract We consider a convexity spaces $$X$$ in the sense of V.W. Bryant and R.J. Webster [1]. In [8] we…

## Regarding the action of sun and moon on the movement of core of the Earth

AbstractAuthorsC. Vamoș -Tiberiu Popoviciu Institute of Numerical Analysis, Romanian Academy N. Suciu -Tiberiu Popoviciu Institute of Numerical Analysis, Romanian Academy KeywordsCite this…

## On some interpolation iterative methods with optimal convergence speed

Abstract We consider nonlinear equations in $$\mathbb{R}$$, and a class of iterative methods obtained by inverse interpolation of Hermite type.…

## Optimal Steffensen type iterative methods obtained by inverse interpolation

Abstract Let $$f:I\subset \mathbb{R\rightarrow R}$$ be a nonlinear mapping and the equation $$f\left( x\right) =0$$ with solution $$x^{\ast}$$; consider the…

## On optimal iterative methods

Abstract Let $$\left( X,\rho \right)$$ be a complete matrix space, the nonlinear mapping $$\varphi:I\subset X\rightarrow X$$ and the equation \(x=\varphi…