Global ETD Search

101	A four-wing chaotic attractor generated from a new 3-D quadratic autonomous system QI, G, Chen, G, van Wyk, MA, van Wyk, BJ, Zhang, Y 02 January 2007 (has links) This paper introduces a new 3-D quadratic autonomous system, which can generate two coexisting single-wing chaotic attractors and a pair of diagonal double-wing chaotic attractors. More importantly, the system can generate a fourwing chaotic attractor with very complicated topological structures over a large range of parameters. Some basic dynamical behaviors and the compound structure of the new 3-D system are investigated. Detailed bifurcation analysis illustrates the evolution processes of the system among two coexisting sinks, two coexisting periodic orbits, two coexisting single-wing chaotic attractors, major and minor diagonal double-wing chaotic attractors, and a four-wing chaotic attractor. Poincare´-map analysis shows that the system has extremely rich dynamics. The physical existence of the fourwing chaotic attractor is verified by an electronic circuit. Finally, spectral analysis shows that the system has an extremely broad frequency bandwidth, which is very desirable for engineering applications such as secure communications. 3-D quadratic autonmous system spectral analys
102	On the Number of Periodic Points of Quadratic Dynamical Systems Modulo a Prime Streipel, Jakob January 2015 (has links) We investigate the number of periodic points of certain discrete quadratic maps modulo prime numbers. We do so by first exploring previously known results for two particular quadratic maps, after which we explain why the methods used in these two cases are hard to adapt to a more general case. We then perform experiments and find striking patterns in the behaviour of these general cases which suggest that, apart from the two special cases, the number of periodic points of all quadratic maps of this type behave the same. Finally we formulate a conjecture to this effect. Discrete dynamical systems Quadratic maps Periodic points
103	IDEAL STRUCTURE OF RELATIVE QUADRATIC FIELDS ARISING FROM FIXED POINTS OFTHE HILBERT MODULAR GROUP Nymann, James Eugene, 1938- January 1965 (has links) No description available. Riemann surfaces. Hilbert modules. Quadratic fields.
104	Quadratic forms in normal variables Scarowsky, Issie January 1973 (has links) No description available. Forms, Quadratic. Multivariate analysis Distribution (Probability theory)
105	Polyhedral approaches to solving nonconvex quadratic programs Vandenbussche, Dieter 05 1900 (has links) No description available. Polyhedral functions Nonconvex programming Equations, Quadratic
106	The quadratic assignment problem : exact and heuristic methods Sherali, Hanif Dostmahomed 08 1900 (has links) No description available. Plant layout Heuristic programming Equations, Quadratic
107	Non-hydrogenic systems in a magnetic field He, Xing-Hong January 1996 (has links) No description available. 539.7
108	Cancer treatment optimization Cha, Kyungduck. January 2008 (has links) Thesis (Ph. D.)--Industrial and Systems Engineering, Georgia Institute of Technology, 2008. / Committee Chair: Lee, Eva K.; Committee Member: Barnes, Earl; Committee Member: Hertel, Nolan E.; Committee Member: Johnson, Ellis; Committee Member: Monteiro, Renato D.C.
109	Quadratic programming algorithms, anomalies [and] applications. Boot, John C. G., January 1964 (has links) Proefschrift--Nederlandsche Economische Hoogeschool, Rotterdam. / "Stellingen": [4] p. inserted.
110	Measure-equivalence of quadratic forms / Limmer, Douglas James. January 1900 (has links) Thesis (Ph. D.)--Oregon State University, 1999. / Typescript (photocopy). Includes bibliographical references (leaf 66). Also available on the World Wide Web.

Search results