6.4 Equations with Constant Coeﬃcients Problems 1. Find the characteristic equation, characteristic curves and obtain a canonical form for a. 4 u xx +5 u xy + u yy + u x + u y =2 b. u xx + u xy + u yy + u x =0 c. 3 u xx +10 u xy +3 u yy = x +1 d. u xx +2 u xy +3 u yy +4 u x +5 u y + u = e
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This note was uploaded on 12/22/2011 for the course MAP 2302 taught by Professor Bell,d during the Fall '08 term at UNF.