A Local Tb Theorem for Square Functions and Parabolic Layer Potentials.

Autor: Wang, Zhi Dan, Zhang, Guo Ming
Předmět:
Zdroj: Acta Mathematica Sinica; Aug2024, Vol. 40 Issue 8, p1941-1966, 26p
Abstrakt: In this paper, we give a locally parabolic version of Tb theorem for a class of vector-valued operators with off-diagonal decay in L2 and certain quasi-orthogonality on a subspace of L2, in which the testing functions themselves are also vector-valued. As an application, we establish the boundedness of layer potentials related to parabolic operators in divergence form, defined in the upper half-space ℝ+n+2 ≔ {(x, t, λ) ∈ ℝn+1 × (0, ∞)}, with uniformly complex elliptic, L, t, λ-independent coefficients, and satisfying the De Giorgi/Nash estimates. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index