Comments on: "Impossibility of the existence of the universal density functional"

TL;DR

This paper critically analyzes the claims of impossibility regarding the universal density functional in DFT, focusing on the constrained-search reformulation to evaluate the original argument.

Contribution

It provides a detailed critique of the original proof, exploring the implications of the constrained-search approach in density functional theory.

Findings

Re-examination of the original proof of impossibility

Insights into the constrained-search reformulation of DFT

Potential challenges to the universality claim

Abstract

An analisys is done about the paper "Impossibility of the existence of the universal density functional" of V.B. Bobrov and S.A. Trigger considering the constrained-search reformulation of DFT.