INSTABILITY IN MODELS CONNECTED WITH FLUID FLOWS I

By Y. ELIRK

ANALYTICITY PERIODIC SOLUTIONS THE BOUSSINESQ SYSTEM NONLINEAR DYNAMICS SYSTEM PARTICLE-LIKE WAVEPACKETS ATTRACTORS FOR NONAUTONOMOUS NAVIER STOKES SYSTEM AND OTHER PARTIAL DIFFERENTIAL EQUATIONS RECENT RESULTS LARGE AMPLITUDE MONOPHASE NONLINEAR GEOMETRIC OPTICS EXISTENCE THEOREMS FOR THE SYSTEM HAVING INITIAL CONDITIONS SUMS PLANE WAVES BURSTING DYNAMICS THE EULER EQUATIONS CYLINDRICAL DOMAINS INCREASED STABILITY THE CAUCHY PROBLEM FOR SOME ELLIPTIC EQUATIONS