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Finding Solution of Inhomogeneous Heat Equation

  1. Oct 9, 2012 #1
    1. The problem statement, all variables and given/known data

    Show that if u(x,t) and v(x,t) are solutions to the Dirichlet problems for the Heat equation

    u_t (x,t) - ku_xx (x,t) = f(x,t), u(x,0) = Φ₁(x), u(0,t) = u(1,t) = g₁(t)

    v_t (x,t) - kv_xx (x,t) = f(x,t), v(x,0) = Φ₂(x), v(0,t) = v(1,t) = g₂(t)

    and if Φ₂(x) ≤ Φ₁(x) for 0 ≤ x ≤ 1, g₂(t) ≤ g₁(t), t > 0, then for all 0 < x < 1, t >0, we have u(x,t) ≥ v(x,t)

    2. Relevant equations



    3. The attempt at a solution

    Following steps of example 2 and 3 of the following link, but I dont really understand what they are doing

    http://www.math.mcgill.ca/jakobson/courses/ma264/pde-heat.pdf
     
  2. jcsd
  3. Oct 10, 2012 #2
    Please help me... bump...
     
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