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Let T 0 be the maximum existence time.
for the maximum existence time T, where T ∈ (0, ∞]. Our main blow-up result for the problem (1.2) with arbitrarily positive initial energy is stated as follows.
which implies that T is not the maximum existence time and thus the solution ( u, w, b ) can be extended beyond T by the standard arguments of continuation of local solutions.
where T is the maximum existence time of solutions u 1 and u 2 and c depends on ∥ u 1 ( 0, x ) ∥ H 1 ( R ) and ∥ u 2 ( 0, x ) ∥ H 1 ( R ).
Here D ⊂ R N ( N ≥ 1 ) is a bounded domain with a smooth boundary ∂D, D ¯ is the closure of D, q = | ∇ u | 2, n is the outer normal vector and T is the maximum existence time of u ( x, t ). a ( u ) b ( x ) c ( t ), f ( x, u, q, t ) and h ( x, t ) r ( u ) are nonlinear diffusion coefficient, reaction term and boundary flux, respectively.
Let u 0 ( x ) ∈ H s ( R n ) with s > n 2. Then the Cauchy problem (3) has a unique solution u ( t, x ) ∈ C ( [ 0, T ) ; H s ( R n ) ) ∩ C 1 ( [ 0, T ) ; H s − 1 ( R n ) ) where T is the maximum existence time. Moreover, lim t → T ∥ u ( t, ⋅ ) ∥ H s ( R n ) = ∞. if and only if lim t → T ∥ u ( t, ⋅ ) ∥ L ∞ ( R n ) = ∞. For the case of space dimension n = 1, we have the result.
Similar(54)
From the maximum principle for parabolic equations [16], it is not hard to verify that for, where is the maximal existence time of the solution.
Summer's approaching and that means maximum beach time.
Read more: Judge Gives York University Rapist Maximum Prison Time.
HIIT should be done maximum one time per week with full recovery made before lifting again.
RMWT: recommended maximum waiting time.
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