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Birkhoff interpolation

Known as: Birkhoff 
In mathematics, Birkhoff interpolation is an extension of polynomial interpolation. It refers to the problem of finding a polynomial p of degree d… 
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Papers overview

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2013
2013
We prove a Jebsen-Birkhoff like theorem for f(R) theories of gravity in order to to find the necessary conditions required for… 
2010
2010
. Consider, as nodes for polynomial interpolation, the nth roots of unity. For a sufficiently smooth function /(z), we require a… 
2007
2007
We consider a dynamical system that exhibits transition chains of invariant tori alternating with Birkhoff zones of instability… 
Highly Cited
2001
Highly Cited
2001
Based on a decomposition result by Birkhoff (1946) and von Neumann (1953) for a doubly sub-stochastic matrix, in this letter we… 
2000
2000
We consider the regularity of Birkhoff interpolation on some non-uniformly distributed roots of unity. We determine the range of… 
1999
1999
AbstractThis paper deals with perturbed dynamical systems of the form: $$ - \ddot u + u = \nabla V\left( u \right) + \varepsilon… 
1995
1995
In this paper, with the use of the homotopy method, a constructive proof of the Poincare-Birkhoff theorem is given. This approach… 
Highly Cited
1983
Highly Cited
1983
Multiparametrical exact solutions of the many-dimensional nonlinear d'Alembert, Liouville, sine-Gordon and eikonal equations are… 
1967
1967
Introduction. We are interested in the coalgebra structure of cocommutative Hopf algebras. Over an algebraically closed field a…