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On an optimal problem of bilinear forms

Naihuan Jing, Yibo Liu, Jiacheng Sun, Chengrui Zhao and Haoran Zhu

Vol. 18 (2025), No. 3, 479–486
Abstract

We study an optimization problem originating from the Grothendieck constant. A generalized normal equation is proposed and analyzed. We establish a correspondence between solutions of the general normal equation and its dual equation. Explicit solutions are described for the two-dimensional case.

Keywords
Grothendieck constant, general normal equation, optimization
Mathematical Subject Classification
Primary: 15A18
Secondary: 15Axx
Milestones
Received: 1 August 2023
Revised: 28 January 2024
Accepted: 19 February 2024
Published: 28 April 2025

Communicated by Kenneth S. Berenhaut
Authors
Naihuan Jing
Department of Mathematics
North Carolina State University
Raleigh, NC
United States
Yibo Liu
College of Sciences
Northeastern University
Shenyang
China
Jiacheng Sun
College of Sciences
Northeastern University
Shenyang
China
Chengrui Zhao
College of Sciences
Northeastern University
Shenyang
China
Haoran Zhu
College of Sciences
Northeastern University
Shenyang
China