The braid index of reduced alternating links

Y Diao, G Hetyei, P Liu - Mathematical Proceedings of the …, 2020 - cambridge.org
It is well known that the minimum crossing number of an alternating link equals the number
of crossings in any reduced alternating link diagram of the link. This remarkable result is an …

The ropelength of special alternating knots

Y Diao - arXiv preprint arXiv:2011.06200, 2020 - arxiv.org
A long standing open conjecture states that if a link $\mathcal {K} $ is alternating, then its
ropelength $ L (\mathcal {K}) $ is at least of the order $ O (Cr (\mathcal {K})) $. A recent result …

Sharpness of the Morton-Franks-Williams inequality for positive knots and links

I Alekseev - arXiv preprint arXiv:2211.16434, 2022 - arxiv.org
We provide a combinatorial characterisation of positive diagrams satisfying the equality in
the Morton-Franks-Williams bound for the degrees of the HOMFLY-PT polynomial. This …

Число перекрёстков (замкнутых) однородных кос

ИС Алексеев - Алгебра и анализ, 2024 - mathnet.ru
Мы применяем инварианты М. Поляка и М. Бранденбурского для получения оценок на
числа перекрёстков (замкнутых) кос и расширяем известные критерии минимальности …

New classes of minimal knot diagrams

I Alekseev - arXiv preprint arXiv:2012.04330, 2020 - arxiv.org
We describe a new class of minimal link diagrams. This class includes certain alternating
diagrams, the standard diagrams of all torus links, and numerous homogeneous diagrams …

Combinatorics of the HOMFLY-PT polynomial

AI Sergeevic - 2022 - dspace.spbu.ru
The present thesis is devoted to knot theory. We elaborate on recent developments in
polynomial invariants and obtain new applications for complexity measures of knots given …

New classes of minimal knot diagrams

AI Sergeevic - 2020 - dspace.spbu.ru
The thesis is devoted to knot theory. We study diagrams of knots, links, braids, and tangles
with the minimum number of crossings, the minimum number of Seifert circles, and other …