{ "id": "2004.03526", "version": "v1", "published": "2020-04-07T16:32:21.000Z", "updated": "2020-04-07T16:32:21.000Z", "title": "Hamiltonian formalism of the inverse problem using Dirac geometry and its application on Linear systems", "authors": [ "Hassan Najafi Alishah" ], "categories": [ "math.DS", "math.SG" ], "abstract": "We present the Hamiltonian formalism for the inverse problem having Dirac$\\backslash$ big-isotropic structures as underlying geometry. We used the same idea at [1] to treat replicator equations. Here we state the procedure used there for general vector fields that can be written in a gradient form. For a linear system, we show that if representing matrix of the system has at least one pair of positive-negative non-zero eigenvalues or in the case of eigenvalue zero, at least one three dimensional Jordan block associated to it, then the linear system has a Hamiltonian description with respect to a non-trivial Dirac$\\backslash$big-isotropic structure. More interestingly, we prove that every Hamiltonian linear system is Hamiltonian integrable. As a byproduct, we found a class of linear systems with eigenvalue zero that are Hamiltonian only with respect to a proper big-isotropic structure. Our approach provides, also, a clear picture for the alternative Hamiltonian descriptions of linear systems.", "revisions": [ { "version": "v1", "updated": "2020-04-07T16:32:21.000Z" } ], "analyses": { "keywords": [ "inverse problem", "hamiltonian formalism", "dirac geometry", "application", "hamiltonian description" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }