{ "id": "1605.05925", "version": "v1", "published": "2016-05-19T12:52:42.000Z", "updated": "2016-05-19T12:52:42.000Z", "title": "Transcritical bifurcation without parameters in memristive circuits", "authors": [ "Ricardo Riaza" ], "categories": [ "math.DS" ], "abstract": "The transcritical bifurcation without parameters (TBWP) describes a stability change along a line of equilibria, resulting from the loss of normal hyperbolicity at a given point of such a line. Memristive circuits systematically yield manifolds of non-isolated equilibria, and in this paper we address a systematic characterization of the TBWP in circuits with a single memristor. To achieve this we develop two mathematical results of independent interest; the first one is an extension of the TBWP theorem to explicit ordinary differential equations (ODEs) in arbitrary dimension; the second result drives the characterization of this phenomenon to semiexplicit differential-algebraic equations (DAEs), which provide the appropriate framework for the analysis of circuit dynamics. In the circuit context the analysis is performed in graph-theoretic terms: in this setting, our first working scenario is restricted to passive problems (exception made of the bifurcating memristor), and in a second step some results are presented for the analysis of non-passive cases. The latter context is illustrated by means of a memristive neural network model.", "revisions": [ { "version": "v1", "updated": "2016-05-19T12:52:42.000Z" } ], "analyses": { "subjects": [ "34A09", "34C45", "34D35", "37G10", "94C05", "94C15" ], "keywords": [ "transcritical bifurcation", "parameters", "explicit ordinary differential equations", "memristive neural network model", "memristive circuits systematically yield manifolds" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }