20th Hellenic School and Workshops on Elementary Particle Physics and Gravity, CORFU 2021, Corfu, Yunanistan, 29 Ağustos - 09 Ekim 2021, cilt.406
© Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0)In this contribution we have collected some facts about Killing and Killing-Yano tensors that we feel are of general interest for researchers working on problems that rely on differential geometry. We also include some of our recent studies pertaining to currents, charges and (super)invariants for particles and tensionless strings.