Search Results - "Gan, Shengwen"
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Small Cap Square Function Estimates
Published in The Journal of fourier analysis and applications (01-06-2024)“…We introduce and prove small cap square function estimates for the unit parabola and the truncated light cone. More precisely, we study inequalities of the…”
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An Exceptional Set Estimate for Restricted Projections to Lines in R3
Published in The Journal of geometric analysis (2024)“…Let γ : [ 0 , 1 ] → S 2 be a non-degenerate curve in R 3 , that is to say, det ( γ ( θ ) , γ ′ ( θ ) , γ ′ ′ ( θ ) ) ≠ 0 . For each θ ∈ [ 0 , 1 ] , let l θ =…”
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An Incidence Estimate and a Furstenberg Type Estimate for Tubes in R2
Published in The Journal of fourier analysis and applications (2022)“…We study the δ -discretized Szemerédi–Trotter theorem and Furstenberg set problem. We prove sharp estimates for both two problems assuming tubes satisfy some…”
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Exceptional Set Estimate Through Brascamp–Lieb Inequality
Published in International mathematics research notices (07-05-2024)“…Abstract Fix integers $1\le k<n$, and numbers $a,s$ satisfying $0<s<\min \{k,a\}$. The problem of exceptional set estimate is to determine $$\begin{align*} &…”
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5
A note on local smoothing estimates for fractional Schrödinger equations
Published in Journal of functional analysis (01-09-2022)“…We improve local smoothing estimates for fractional Schrödinger equations for α∈(0,1)∪(1,∞)…”
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6
An Exceptional Set Estimate for Restricted Projections to Lines in $$\mathbb R^3
Published in The Journal of geometric analysis (01-01-2024)“…Abstract Let $$\gamma :[0,1]\rightarrow \mathbb S^{2}$$ γ : [ 0 , 1 ] → S 2 be a non-degenerate curve in $$\mathbb R^3$$ R 3 , that is to say, $$\det \big…”
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7
An Incidence Estimate and a Furstenberg Type Estimate for Tubes in $$\mathbb {R}^2
Published in The Journal of fourier analysis and applications (01-08-2022)“…Abstract We study the $$\delta $$ δ -discretized Szemerédi–Trotter theorem and Furstenberg set problem. We prove sharp estimates for both two problems assuming…”
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An Incidence Estimate and a Furstenberg Type Estimate for Tubes in [Formula omitted]
Published in The Journal of fourier analysis and applications (01-08-2022)“…We study the [Formula omitted]-discretized Szemerédi-Trotter theorem and Furstenberg set problem. We prove sharp estimates for both two problems assuming tubes…”
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Iterative local maximum synchrosqueezing-extracting transform
Published in Measurement : journal of the International Measurement Confederation (01-01-2025)“…•Extracting the maximum value of the instantaneous frequency during each iteration to eliminate non-reassigned TF points.•A synchroextracting operator is…”
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Furstenberg set problem and exceptional set estimate in prime fields: dimension two implies higher dimensions
Published 17-09-2024“…We study Furstenberg set problem, and exceptional set estimate for Marstrand's orthogonal projection in prime fields for all dimensions. We define the…”
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Effects of intravenous nicardipine followed by oral labetalol in combination with nifedipine controlled-release tablet on severe peripartum hypertension
Published in Ginekologia polska (01-01-2024)“…OBJECTIVES: : To investigate the effects of intravenous nicardipine as initial therapy and oral labetalol combined with nifedipine controlled-release tablet as…”
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12
Kakeya problem and projection problem for $k$-geodesics in Grassmannians
Published 04-04-2024“…The Kakeya problem in $\mathbb{R}^n$ is about estimating the size of union of $k$-planes; the projection problem in $\mathbb{R}^n$ is about estimating the size…”
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13
A Marstrand projection theorem for lines
Published 26-10-2023“…Fix integers $1<k<n$. For $V\in G(k,n)$, let $P_V: \mathbb{R}^n\rightarrow V$ be the orthogonal projection. For $V\in G(k,n)$, define the map \[ \pi_V:…”
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14
Exceptional set estimate through Brascamp-Lieb inequality
Published 15-08-2023“…Fix integers $1\le k<n$, and numbers $a,s$ satisfying $0<s<\min\{k,a\}$. The problem of exceptional set estimate is to determine \[T(a,s):=\sup_{A\subset…”
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15
Hausdorff dimension of unions of $k$-planes
Published 23-05-2023“…We prove a conjecture of H\'era on the dimension of unions of $k$-planes. Let $0<k \le d<n$ be integers, and $\beta\in[0,k+1)$. If $\mathcal{V}\subset A(k,n)$,…”
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Small cap square function estimates
Published 05-04-2023“…We introduce small cap square function estimates for parabola and cone, and prove the sharp estimates. More precisely, we study the inequalities of form \[…”
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Efficacy of low-dose nicardipine for emergent treatment of severe postpartum hypertension in maternal intensive care units: An observational study
Published in Pregnancy hypertension (01-07-2020)“…•Low-dose nicardipine can treat severe postpartum hypertension efficiently.•Using low-dose nicardipine need not adjust therapeutic dosage…”
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Intra-arterial versus oscillometric blood pressure measurements in women with severe peripartum hypertension undergoing urgent treatment with nicardipine: An observational study
Published in Pregnancy hypertension (01-06-2021)“…•Intravenous nicardipine can treat severe postpartum hypertension efficiently.•Invasive mean arterial pressure can be used to monitor the effect of…”
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A weighted decoupling inequality and its application to the maximal Bochner-Riesz problem
Published 07-03-2024“…We prove some weighted $L^p\ell^p$-decoupling estimates when $p=2n/(n-1)$. As an application, we give a result beyond the real interpolation exponents for the…”
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Exceptional set estimates in finite fields
Published 25-02-2023“…We study the exceptional set estimate for projections in $\mathbb{F}_q^n$. For each $V\in G(k,\mathbb{F}^n_q)$, let $$ \pi_V: \mathbb{F}_q^n\rightarrow V $$ be…”
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