On Spectra and Minimal Polynomials in Finite Semifields
Автор:
Kravtsova, Olga V.
Kuzmin, Ilya K.
Кравцова, Ольга В.
Кузьмин, Илья К.
Дата:
2025-02Журнал:
Журнал сибирского федерального университета. 2025 18(1). Journal of Siberian Federal University. Mathematics & Physics. 2025 18(1)Аннотация:
We apply the notion of a one-side-ordered minimal polynomial to investigations in finite
semifields. A proper finite semifield has non-associative multiplication, that leads to the anomalous
properties of its left and right spectra. We obtain the sufficient condition when the right (left) order
of a semifield element is a divisor of the multiplicative loop order. The interrelation between the min-
imal polynomial of non-zero element and its right (left) order is described using the spread set. This
relationship fully explains the most interesting and anomalous examples of small-order semifields Для исследования конечных полуполей применяется понятие одностороннеупорядоченного минимального многочлена. Отсутствие ассоциативности умножения в собственном
полуполе приводит к аномальным свойствам его левого и правого спектра. Получено достаточное
условие делимости порядка мультипликативной лупы на правый (левый) порядок элемента. С
использованием регулярного множества полуполя описана связь минимального многочлена ненулевого элемента и его правого (левого) порядка. Эта взаимосвязь дает исчерпывающее объяснение
наиболее интересным аномальным примерам полуполей малых порядков
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