摘要

In this paper, the authors characterize the Triebel-Lizorkin space (F) over dot(p,q)(alpha)(R-n) via a new square function @@@ S-alpha,S-q(f)(x) = {Sigma(k is an element of Z)2(k alpha q)vertical bar 1/vertical bar B(x, 2(-k))vertical bar integral(B(x, 2-k))[f(x) - f(y)]dy vertical bar(q)|(1/q), @@@ where f is an element of L-loc(1)(R-n) boolean AND S'(R-n), x is an element of R-n, alpha is an element of (0,2) and p, q is an element of (1,infinity]. Similar characterizations are also established for Triebel-Lizorkin spaces (F) over dot(p,q)(alpha)(R-n) with alpha is an element of (0, infinity)\2N and p,q is an element of (1, infinity], and for Besov spaces (B) over dot(p,q)(alpha)(R-n) with alpha is an element of (0, infinity) \ 2N, p not subset of (1, infinity] and q is an element of (0, infinity].