{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,6]],"date-time":"2026-03-06T18:44:59Z","timestamp":1772822699637,"version":"3.50.1"},"reference-count":25,"publisher":"World Scientific Pub Co Pte Lt","issue":"07","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Int. J. Bifurcation Chaos"],"published-print":{"date-parts":[[2011,7]]},"abstract":"<jats:p> In this paper autonomous and nonautonomous modified hyperchaotic complex L\u00fc systems are proposed. Our systems have been generated by using state feedback and complex periodic forcing. The basic properties of these systems are studied. Parameters range for hyperchaotic attractors to exist are calculated. These systems have very rich dynamics in a wide range of parameters. The analytical results are tested numerically and excellent agreement is found. A circuit diagram is designed for one of these hyperchaotic complex systems and simulated using Matlab\/Simulink to verify the hyperchaotic behavior. <\/jats:p>","DOI":"10.1142\/s0218127411029525","type":"journal-article","created":{"date-parts":[[2011,4,5]],"date-time":"2011-04-05T06:59:24Z","timestamp":1301986764000},"page":"1913-1926","source":"Crossref","is-referenced-by-count":19,"title":["ON AUTONOMOUS AND NONAUTONOMOUS MODIFIED HYPERCHAOTIC COMPLEX L\u00dc SYSTEMS"],"prefix":"10.1142","volume":"21","author":[{"given":"GAMAL M.","family":"MAHMOUD","sequence":"first","affiliation":[{"name":"Department of Mathematics, Faculty of Science, Assiut University, Assiut 71516, Egypt"}]},{"given":"MANSOUR E.","family":"AHMED","sequence":"additional","affiliation":[{"name":"Department of Mathematics, Faculty of Science, Assiut University, Assiut 71516, Egypt"}]},{"given":"NABIL","family":"SABOR","sequence":"additional","affiliation":[{"name":"Department of Electrical Engineering, Faculty of Engineering, Assiut University, Egypt"}]}],"member":"219","published-online":{"date-parts":[[2011,11,20]]},"reference":[{"key":"rf1","first-page":"625","volume":"30","author":"Barbara C.","journal-title":"Int. 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