When is f(x1, x2, . . ., xn)=u1(x1)+u2(x2)+ . . . +un(xn)?
A. Klopotowski, M. G. Nadkarni, K. P. S. Bhaskara Rao
math.FAarXiv:math/0312122
Abstract
We discuss subsets S of Rn such that every real valued function f on S is of the form equation* f(x1,x2,...,xn) = u1(x1) + u2(x2) + ... + un(xn), equation* and the related concepts and situations in analysis.
Create a lesson
Related papers
Every compact operator is a commutator of compact operators
Zhichao Liu
Normal-Direction Energy and Fourier Restriction for Convex Planar Curves
Vicente Vergara
Zero-product problem for Toeplitz operators on the Fock space
Jie Qin
The best Musielak-Orlicz approximation by linear subspaces
Juan Costa Ponce, Sergio Favier, Fabián Levis
Lévy measures for Dirichlet-type spaces on the unit bidisc
Santu Bera, Shanola S. Sequeira
Quantum expanders and dimension-free commutator bounds
Tuan Tran