James Wright
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Previous Organizations / Institutes
The organizations / institutes from the scholar's other articles in the past ten years
Research Subjects
Research Interests
James Wright has a total of 9 co-authors. Here are the top co-authors by number of shared publications:
- Terence Tao
Department of Mathematics, University of California, Los Angeles, USA
2 shared publications Andreas Seeger
University of Edinburgh
1 shared publication- Andreas Seeger
University of Wisconsin-Madison
1 shared publication Anthony Carbery
University of Edinburgh
1 shared publication- Anthony Carbery
University of Edinburgh, UK
1 shared publication - Sarah Ziesler
Research supported by SERC
1 shared publication
Latest Publications
- 27 January 2003
- Published by Cambridge University Press (CUP) in Journal of the Institute of Mathematics of Jussieu
- Vol. 2 (1) , 109-144
ENDPOINT MAPPING PROPERTIES OF SPHERICAL MAXIMAL OPERATORS
For a function , , let be the mean of over the sphere of radius centred at . Given a set of dilations we prove various endpoint bounds for the maximal operator defined by , under some regularity assumptions on .AMS 2000 Mathematics subject classification: Primary 42B25. Secondary 42B20
- 27 January 2003
- Published by Cambridge University Press (CUP) in Journal of the Institute of Mathematics of Jussieu
- Vol. 2 (1) , 109-144
ENDPOINT MAPPING PROPERTIES OF SPHERICAL MAXIMAL OPERATORS
For a function , , let be the mean of over the sphere of radius centred at . Given a set of dilations we prove various endpoint bounds for the maximal operator defined by , under some regularity assumptions on .AMS 2000 Mathematics subject classification: Primary 42B25. Secondary 42B20
- Open Access
Endpoint multiplier theorems of Marcinkiewicz type
We establish sharp (H^1, L^{1,q}) and local (L \log^r L, L^{1,q}) mapping properties for rough one-dimensional multipliers. In particular, we show that the multipliers in the Marcinkiewicz multiplier theorem map H^1 to L^{1,\infty} and L \log^{1/2} L to L^{1,\infty}, and that these estimates are sharp.
Open AccessEndpoint multiplier theorems of Marcinkiewicz type
We establish sharp (H^1, L^{1,q}) and local (L \log^r L, L^{1,q}) mapping properties for rough one-dimensional multipliers. In particular, we show that the multipliers in the Marcinkiewicz multiplier theorem map H^1 to L^{1,\infty} and L \log^{1/2} L to L^{1,\infty}, and that these estimates are sharp.
- 1 December 1999
- Published by Springer Nature in The Journal of Geometric Analysis
- Vol. 9 (4) , 583-605
Classes of singular integral operators along variable lines
- 1 December 1999
- Published by Springer Nature in The Journal of Geometric Analysis
- Vol. 9 (4) , 583-605
Classes of singular integral operators along variable lines
- Open AccessSingular Integrals Associated to Hypersurfaces: $L^2$ TheoryWe consider singular integrals associated to a classical Calder\'on-Zygmund kernel $K$ and a hypersurface given by the graph of $\varphi(\psi(t))$ where $\varphi$ is an arbitrary $C^1$ function and $\psi$ is a smooth convex function of finite type. We give a characterization of those Calder\'on-Zygmund kernels $K$ and convex functions $\psi$ so that the associated singular integral operator is bounded on $L^2$ for all $C^1$ functions $\varphi$.Open AccessSingular Integrals Associated to Hypersurfaces: $L^2$ TheoryWe consider singular integrals associated to a classical Calder\'on-Zygmund kernel $K$ and a hypersurface given by the graph of $\varphi(\psi(t))$ where $\varphi$ is an arbitrary $C^1$ function and $\psi$ is a smooth convex function of finite type. We give a characterization of those Calder\'on-Zygmund kernels $K$ and convex functions $\psi$ so that the associated singular integral operator is bounded on $L^2$ for all $C^1$ functions $\varphi$.
- Open Access
The Calderón Commutator Along a Parabola
We introduce an analogue of Calder\'on's first commutator along a parabola, and establish its $L^2$ boundedness under essentially sharp hypotheses.Open AccessThe Calderón Commutator Along a Parabola
We introduce an analogue of Calder\'on's first commutator along a parabola, and establish its $L^2$ boundedness under essentially sharp hypotheses.