DUMORTIER, Freddy

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Full Name
DUMORTIER, Freddy
Email
freddy.dumortier@uhasselt.be
 
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Publications

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Date Issued:  [1990 TO 1999]

Results 1-20 of 24 (Search time: 0.004 seconds).

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Issue DateTitleContributor(s)TypeCat.
11999Polynomial Lienard equations near infinityDUMORTIER, Freddy; HERSSENS, ChrisJournal Contribution
21999Codimension 4 singularities of reflectionally symmetric planar vector fieldsDUMORTIER, Freddy; IBANEZ MESA, SantiagoJournal Contribution
31999Tracing phase portraits of planar polynomial vector fields with detailed analysis of the singularitiesDUMORTIER, Freddy; HERSSENS, ChrisJournal Contribution
41999On the decidability of semilinearity for semialgebraic sets and its implications for spatial databases. CORRIGENDUMDUMORTIER, Freddy; GYSSENS, Marc; VANDEURZEN, Luc; Van Gucht, DirkJournal Contribution
51999On the decidability of semilinearity for semialgebraic sets and its implications for spatial databasesDUMORTIER, Freddy; GYSSENS, Marc; VANDEURZEN, Luc; Van Gucht, DJournal Contribution
61998Singularities of vector fields on IR-3DUMORTIER, Freddy; IBANEZ MESA, SantiagoJournal Contribution
71997Bifurcations of cuspidal loopsDUMORTIER, Freddy; Roussarie, R; Sotomayor, JJournal Contribution
81997Unfolding of a quadratic integrable system with two centers and two unbounded heteroclinic loopsDUMORTIER, Freddy; Li, CZ; ZHANG, ZefanJournal Contribution
91997Quadratic Lienard equations with quadratic dampingDUMORTIER, Freddy; Li, CZJournal Contribution
101997On the Decidability of Semi-Linearity of Semi-Algebraic Sets and Its Implications for Spatial DatabasesDUMORTIER, Freddy; GYSSENS, Marc; Van Gucht, Dirk; VANDEURZEN, LucProceedings Paper
111996Nilpotent singularities in generic 4-parameter families of 3-dimensional vector fieldsDUMORTIER, Freddy; IBANEZ MESA, SantiagoJournal Contribution
121996Canard cycles and center manifoldsDUMORTIER, Freddy; Roussarie, R.Journal Contribution
131996Hilbert's 16th problem for quadratic systems and cyclicity of elementary graphicsDUMORTIER, Freddy; El Morsalani, M; Rousseau, CJournal Contribution
141996On the uniqueness of limit cycles surrounding one or more singularities for Lienard equationsDUMORTIER, Freddy; Li, CZJournal Contribution
151995TRANSITION TIME ANALYSIS IN SINGULARLY PERTURBED BOUNDARY-VALUE-PROBLEMSDUMORTIER, Freddy; SMITS, BertJournal Contribution
161995A degenerate singularity generating geometric lorenz attractorsDUMORTIER, Freddy; KOKUBU, Hiroshi; OKA, HJournal Contribution
171994HILBERTS 16TH PROBLEM FOR QUADRATIC VECTOR-FIELDSDUMORTIER, Freddy; Roussarie, R; ROUSSEAU, CJournal Contribution
181994ELEMENTARY GRAPHICS OF CYCLICITY-1 AND CYCLICITY-2Roussarie, R; ROUSSEAU, C; DUMORTIER, FreddyJournal Contribution
191993FINITENESS FOR CRITICAL PERIODS OF PLANAR ANALYTIC VECTOR-FIELDSCHICONE, C; DUMORTIER, FreddyJournal Contribution
201993TECHNIQUES IN THE THEORY OF LOCAL BIFURCATIONS - BLOW-UP, NORMAL FORMS, NILPOTENT BIFURCATIONS, SINGULAR PERTURBATIONSDUMORTIER, FreddyProceedings Paper
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