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A FEW NATURAL EXTENSIONS OF THE REGULARITY OF A VERY WEAK SOLUTION

机译:一个非常弱的解的正则性的几个自然扩展

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摘要

We consider a linear operator L(m) with variable coefficients of order 2771 and we study the regularity of the very weak solution u integrable in a bounded open smooth set Omega, integral(Omega) uL(m)(*)phi dx = integral(Omega) phi d mu for all is an element of C(2m)((Omega) over bar) with partial derivative(j)phi/partial derivative v(j) = 0 on the boundary partial derivative Omega for j m 1, where L(m)(*) is the adjoint operator of L, and p, is in the space of weighted bounded Radon measures M(1)(Omega, dist(x, partial derivative Omega)(m)). In particular, we show that the solution u and all its derivatives of order vertical bar gamma vertical bar, vertical bar gamma vertical bar <= m - 1, are in Lorentz spaces. If the measure on the right-hand side belongs to a smaller space such as M(1) (Omega, dist(x, partial derivative Omega)(m-1+a)), 0 <= a < 1, then all its derivatives o f order vertical bar gamma vertical bar, vertical bar gamma vertical bar <= m, are in Lorentz spaces.
机译:我们考虑具有2771阶可变系数的线性算子L(m),并研究有界开放光滑集Omega中可微积分u的可积性的正则性,Omega(umega)uL(m)(*)phi dx =积分所有人的(Ω)phi d mu是C(2m)((Ω超过bar的))的元素,在jm 1的边界偏导数Omega上具有偏导数(j)phi /偏导数v(j)= 0 L(m)(*)是L的伴随算符,而p在加权有界Radon度量M(1)(Omega,dist(x,偏导数Omega)(m))的空间中。特别是,我们证明了解u及其所有阶数的垂直杆gamma垂直杆,垂直杆gamma垂直杆<= m-1都在Lorentz空间中。如果右侧的度量属于较小的空间,例如M(1)(Omega,dist(x,偏导数Omega)(m-1 + a)),则0 <= a <1,则其所有垂直条gamma垂直条,垂直条gamma垂直条<= m的导数在Lorentz空间中。

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