@article{CML_2012__4_4_A2_0, author = {Malte Henkel and Ren\'e Schott and Stoimen Stoimenov and J\'er\'emie Unterberger}, title = {The {Poincar\'e} algebra in the context of ageing systems: {Lie} structure, representations, {Appell} systems and coherent states }, journal = {Confluentes Mathematici}, publisher = {World Scientific Publishing Co Pte Ltd}, volume = {4}, number = {4}, year = {2012}, doi = {10.1142/S1793744212500065}, language = {en}, url = {https://cml.centre-mersenne.org/articles/10.1142/S1793744212500065/} }