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In this paper, we shall prove the uniform sharp $L^p$ decay estimates for a class of oscillatory integral operators with polynomial phases. By this one-dimensional result, we can use the rotation method to obtain uniform sharp $L^p$…

Classical Analysis and ODEs · Mathematics 2019-06-12 Zuoshunhua Shi

We derive damping estimates and asymptotics of $L^p$ operator norms for oscillatory integral operators with finite type singularities. The methods are based on incorporating finite type conditions into $L^2$ almost orthogonality technique…

Analysis of PDEs · Mathematics 2007-05-23 Andrew Comech

We obtain sharp $L^p$ bounds for oscillatory integral operators with generic homogeneous polynomial phases in several variables. The phases considered in this paper satisfy the rank one condition which is an important notion introduced by…

Classical Analysis and ODEs · Mathematics 2019-05-21 Danqing He , Zuoshunhua Shi

The one-dimensional oscillatory integral operator associated to a real analytic phase $S$ is given by $$ T_\lambda f(x) =\int_{-\infty}^\infty e^{i\lambda S(x,y)} \chi(x,y) f(y) dy. $$ In this paper, we obtain a complete characterization…

Classical Analysis and ODEs · Mathematics 2016-02-23 Lechao Xiao

In this paper, we shall prove the $L^{p}$ endpoint decay estimates of oscillatory integral operators with homogeneous polynomial phases $S$ in $\mathbb{R} \times \mathbb{R}$. As a consequence, sharp $L^{p}$ decay estimates are also obtained…

Classical Analysis and ODEs · Mathematics 2018-08-31 Zuoshunhua Shi , Dunyan Yan

The sharp range of $L^p$-estimates for the class of H\"ormander-type oscillatory integral operators is established in all dimensions under a positive-definite assumption on the phase. This is achieved by generalising a recent approach of…

Classical Analysis and ODEs · Mathematics 2019-09-26 Larry Guth , Jonathan Hickman , Marina Iliopoulou

In this paper, we prove $L^p$ decay estimates for multilinear oscillatory integrals in $\mathbb{R}^2$, establishing sharpness through a scaling argument. The result in this paper is a generalization of the previous work by Gressman and Xiao…

Classical Analysis and ODEs · Mathematics 2018-11-15 Aleksandra Niepla , Kevin O'Neill , Zhen Zeng

In this paper, we consider estimates for the two-dimensional oscillatory integrals. The phase function of the oscillatory integrals is the linear perturbation of a function having $D$ type singularities. We consider estimates for the…

Classical Analysis and ODEs · Mathematics 2024-02-07 Ibrokhimbek Akramov , Isroil A. Ikromov

The sharp range of $L^p$-estimates for the class of H\"ormander-type oscillatory integral operators is established in all dimensions under a general signature assumption on the phase. This simultaneously generalises earlier work of the…

Classical Analysis and ODEs · Mathematics 2020-06-18 Jonathan Hickman , Marina Iliopoulou

In this paper we derive sharp $L^p-L^q$ estimates, $1\leq p\leq q\leq \infty$ (including endpoint estimates as $L^1-L^1$ and $L^1-L^\infty$) for dissipative wave-type equations, under the assumption that the dissipation dampen the…

Analysis of PDEs · Mathematics 2025-02-28 Marcello D'Abbicco , Marcelo Rempel Ebert

We establish an almost sharp L^r to L^p estimate for oscillatory integral operators satisfying the cinematic curvature condition. The proof combines Wolff's two-ends reduction with refined decoupling inequalities.

Classical Analysis and ODEs · Mathematics 2026-02-24 Xiangyu Wang

We investigate $(2+1)-$dimensional oscillatory integral operators characterized by polynomial phase functions. By employing Stein's complex interpolation, we derive sharp $L^2\to L^p$ decay estimates for these operators.

Classical Analysis and ODEs · Mathematics 2024-11-25 Shaozhen Xu

This thesis is devoted to asymptotic norm estimates for oscillatory integral operators acting on the L^2 space of functions of one real variable. The operators in question have compact support and an oscillatory kernel of the form exp(i…

Classical Analysis and ODEs · Mathematics 2007-05-23 Vyacheslav S. Rychkov

In this paper, we present new proofs for both the sharp $L^p$ estimate and the decoupling theorem for the H\"ormander oscillatory integral operator. The sharp $L^p$ estimate was previously obtained by Stein\;\cite{stein1} and Bourgain-Guth…

Analysis of PDEs · Mathematics 2025-05-07 Chuanwei Gao , Zhong Gao , Changxing Miao

Oscillatory integral operators with $1$-homogeneous phase functions satisfying a convexity condition are considered. For these we show the $L^p - L^p$-estimates for the Fourier extension operator of the cone due to Ou--Wang via polynomial…

Classical Analysis and ODEs · Mathematics 2023-05-16 Robert Schippa

The purpose of this paper is to obtain a fundamental $L^p-L^{p'}$ estimate for a class of a strongly damped wave equations where the damping operator is given by $-\delta \Delta$ with $\delta \geq 0$ and the constant in the estimate is…

Analysis of PDEs · Mathematics 2024-07-25 Haidar Mohamad

In this paper, we consider $L^p$- estimate for a class of oscillatory integral operators satisfying the Carleson-Sj\"olin conditions with further convex and straight assumptions. As applications, the multiplier problem related to a general…

Analysis of PDEs · Mathematics 2022-01-05 Chuanwei Gao , Jingyue Li , Liang Wang

We obtain the $L^p$ decay of oscillatory integral operators $T_\lambda$ with certain homogeneous polynomial phase of degree $d$ in $(n+n)$-dimensions. In this paper we require that $d>2n$. If $d/(d-n)<p<d/n$, the decay is sharp and the…

Classical Analysis and ODEs · Mathematics 2017-11-13 Shaozhen Xu , Dunyan Yan

For any integer $n \geq 2$, we establish $L^p(\R^n)$ inequalities for the $r$-variations of Stein-Wainger type oscillatory integral operators with general phase functions. These inequalities closely related to Carleson's theorem are sharp,…

Classical Analysis and ODEs · Mathematics 2026-02-12 Renhui Wan

We consider the oscillatory integrals with parameter-dependent phases. We decompose the integrals into a leading term and a remainder term. Instead of the pointwise estimate, we use some $L^p$-estimate for the remainder term and get various…

Classical Analysis and ODEs · Mathematics 2024-02-14 Zihua Guo
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