Chu-hee Cho

collaborators

2 papers

math.CA2026

Sharp $L^{2}$ Estimates for $(2 + 1)$ -dimensional oscillatory integral operators with homogeneous binomial phases

Chu-hee Cho, Jin Bong Lee, Chan Woo Yang

We study oscillatory integral operators in $(2 + 1)$ -dimensions with a homogeneous binomial phase \[ Φ(x,y,t)=x^{k-k_P}t^{k_P}+y^{k-k_Q}t^{k_Q}, \qquad 1\le k_P<k_Q<k. \] For compact…

math.AP2024

Dimension of divergence sets of oscillatory integrals with concave phase

Chu-hee Cho, Shobu Shiraki

We study the Hausdorff dimension of the sets on which the pointwise convergence of the solutions to the fractional SchrÃ¶dinger equation $e^{i t (- I^)^{\frac{m}{2}}} f$ fails when $m\in(0,…

Sharp L2 Estimates for (2+1)-dimensional oscillatory integral operators with homogeneous binomial phases

Dimension of divergence sets of oscillatory integrals with concave phase

Sharp $L^{2}$ Estimates for $(2 + 1)$ -dimensional oscillatory integral operators with homogeneous binomial phases