An optimal multiplier theorem for Grushin operators in the plane, I.

GM Dall'Ara, A Martini - Revista Mathematica Iberoamericana, 2023 - ems.press
Let LD@ 2 x Vx/@ 2 y be the Grushin operator on R2 with coefficient VWR! Œ0; 1/. Under
the sole assumptions that Vx/'Vx/'xV 0. x/and x2jV 00. x/j. Vx/, we prove a spectral multiplier …

On some operator-valued Fourier pseudo-multipliers associated to Grushin operators

S Bagchi, R Basak, R Garg, A Ghosh - Journal of Mathematical Analysis …, 2024 - Elsevier
This is a continuation of our work [2],[3] where we have initiated the study of sparse
domination and quantitative weighted estimates for Grushin pseudo-multipliers. In this …

Sparse bounds for pseudo-multipliers associated to Grushin operators, I

S Bagchi, R Basak, R Garg, A Ghosh - Journal of Fourier Analysis and …, 2023 - Springer
Sparse Bounds for Pseudo-multipliers Associated to Grushin Operators, I | Journal of Fourier
Analysis and Applications Skip to main content Springer Nature Link Account Menu Find a …

Sparse bounds for pseudo-multipliers associated to Grushin operators, II

S Bagchi, R Basak, R Garg, A Ghosh - The Journal of Geometric Analysis, 2024 - Springer
In this article, we establish pointwise sparse domination results for Grushin pseudo-
multipliers corresponding to various symbol classes, as a continuation of our investigation …