In the book "linear and quasi-linear equations of parabolic type", it defines the space $W_q^{2l,l}(Q_T)$. But what is $W_2^{1,1/2}(Q_T)$. Is it the special case when $l=1/2$?
2026-03-26 04:50:57.1774500657
What is $W_2^{1,1/2}(Q_T)$?
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