On NSP constants of a matrix and their linear preservers

• Дата: 2020
• Автор: Skrzyński, Marcin
• Формат: Стаття
• Мова: English
• Опубліковано: Lugansk National Taras Shevchenko University 2020
• Теми: Null Space Property; spark of a matrix; linear preserver of a function; Primary 15A86; Secondary 15A03; 15A60
• Онлайн доступ: https://admjournal.luguniv.edu.ua/index.php/adm/article/view/1138
• Назва журналу: Algebra and Discrete Mathematics

We collect some basic properties of NSP constants of a matrix, discuss an additive behavior of the spark, and prove two theorems characterizing linear endomorphisms which preserve the NSP constants.