Singquandle shadows and singular knot invariants
Canadian mathematical bulletin, Tome 65 (2022) no. 3, pp. 770-787
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We introduce shadow structures for singular knot theory. Precisely, we define two invariants of singular knots and links. First, we introduce a notion of action of a singquandle on a set to define a shadow counting invariant of singular links which generalize the classical shadow colorings of knots by quandles. We then define a shadow polynomial invariant for shadow structures. Lastly, we enhance the shadow counting invariant by combining both the shadow counting invariant and the shadow polynomial invariant. Explicit examples of computations are given.
Mots-clés :
Quandle polynomial, singular knots and links, singquandle polynomial
Ceniceros, Jose; Churchill, Indu R.; Elhamdadi, Mohamed. Singquandle shadows and singular knot invariants. Canadian mathematical bulletin, Tome 65 (2022) no. 3, pp. 770-787. doi: 10.4153/S0008439521000837
@article{10_4153_S0008439521000837,
author = {Ceniceros, Jose and Churchill, Indu R. and Elhamdadi, Mohamed},
title = {Singquandle shadows and singular knot invariants},
journal = {Canadian mathematical bulletin},
pages = {770--787},
year = {2022},
volume = {65},
number = {3},
doi = {10.4153/S0008439521000837},
url = {http://geodesic.mathdoc.fr/articles/10.4153/S0008439521000837/}
}
TY - JOUR AU - Ceniceros, Jose AU - Churchill, Indu R. AU - Elhamdadi, Mohamed TI - Singquandle shadows and singular knot invariants JO - Canadian mathematical bulletin PY - 2022 SP - 770 EP - 787 VL - 65 IS - 3 UR - http://geodesic.mathdoc.fr/articles/10.4153/S0008439521000837/ DO - 10.4153/S0008439521000837 ID - 10_4153_S0008439521000837 ER -
%0 Journal Article %A Ceniceros, Jose %A Churchill, Indu R. %A Elhamdadi, Mohamed %T Singquandle shadows and singular knot invariants %J Canadian mathematical bulletin %D 2022 %P 770-787 %V 65 %N 3 %U http://geodesic.mathdoc.fr/articles/10.4153/S0008439521000837/ %R 10.4153/S0008439521000837 %F 10_4153_S0008439521000837
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