Browsing by Author "Barkat, Meriem"
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Item Phase planes and bifurcations in planar linear-quadratic differential systems with a pseudo-focus(UNIVERSITY BBA, 2024-06-12) Barkat, MeriemOur thesis isdividedinthreeparts,thefirstpartconsistsinsolvingthesecondpartofthe extended 16thHilbertproblemforaclassofdiscontinuouspiecewisedifferentialsystems.The second partfocusesonfindingthemaximumnumberoflimitcyclesofsmallamplitudewhichis called thecyclictyproblem,andthethirdpartwewereabletofindtheglobalphaseportraitsand the bifurcationsetsforsomespecificfamiliesofdiscontinuouspiecewisequadraticdifferential systems, characterizedbyhavingapseudo-centreattheorigin