2026 Ole Christensen: Mathematics Researcher – H-Index, Publications & Awards

Discipline name	D-Index	World Ranking	Current World Ranking	National Ranking	Current National Ranking	Publications	Citations
Mathematics	37	2437	2163	11	9	195	8606

Discipline name

D-Index

World Ranking

Current World Ranking

National Ranking

Current National Ranking

Publications

Citations

Mathematics

2437

2163

195

8606

Overview

Ole Christensen is affiliated with the Technical University of Denmark in Denmark. Their research primarily spans the field of Mathematics, with significant contributions to Applied Mathematics and Mathematical Physics.

The scientist's work extensively covers topics including:

Mathematical Analysis and Transform Methods
Algebraic and Geometric Analysis
Holomorphic and Operator Theory
Image and Signal Denoising Methods
Advanced Harmonic Analysis Research
Advanced Algebra and Geometry
Spectral Theory in Mathematical Physics

Ole Christensen frequently publishes in various mathematical journals and venues. Notable publication venues include:

Canadian Mathematical Bulletin
arXiv (Cornell University)
Sampling Theory Signal Processing and Data Analysis
Applied and Computational Harmonic Analysis
Studia Mathematica

Some of the recent papers authored by Ole Christensen are:

Explicit construction of frames and pairs of dual frames on locally compact abelian groups, 2021, Sampling Theory Signal Processing and Data Analysis
The mystery of Carleson frames, 2024, Applied and Computational Harmonic Analysis
Approximate frame representations via iterated operator systems, 2021, Studia Mathematica
Frames and generalized operator orbits, 2023, Sampling Theory Signal Processing and Data Analysis
The unitary extension principle for locally compact abelian groups with co-compact subgroups, 2020, Proceedings of the American Mathematical Society

Ole Christensen collaborates with other researchers in their field. Frequent coauthors include:

Marzieh Hasannasab
Rae Young Kim
Hong Oh Kim
Say Song Goh
Friedrich Philipp

Best Publications

An introduction to frames and Riesz bases

Ole Christensen

3503
Citations
Frames and Bases: An Introductory Course

Ole Christensen

340
Citations
Perturbation of Operators and Applications to Frame Theory

Peter G. Cazassa;Ole Christensen

256
Citations
Density of Gabor Frames

Ole Christensen;Baiqiao Deng;Christopher Heil

249
Citations
Oblique dual frames and shift-invariant spaces

O Christensen;Y.C Eldar

233
Citations
Frames, Riesz bases, and discrete Gabor/wavelet expansions

Ole Christensen

193
Citations
P-FRAMES IN SEPARABLE BANACH SPACES

Ole W. Christensen;Diana T. Stoeva

184
Citations
Perturbation of Banach Frames and Atomic Decomposition

Ole Christensen;C. Heil

172
Citations
FRAME EXPANSIONS IN SEPARABLE BANACH SPACES

Pete Casazza;Ole Christensen;Diana T. Stoeva

167
Citations
A Paley-Wiener theorem for frames

Ole Christensen

152
Citations
Frames and pseudo-inverses

O. Christensen

136
Citations
Weyl-Heisenberg frames for subspaces of L^2(R)

Peter G. Casazza;Ole Christensen

135
Citations
Frames and the Feichtinger conjecture

Peter G. Casazza;Ole Christensen;Alexander M. Lindner;Roman Vershynin

119
Citations
Frames and Bases

Ole Christensen

111
Citations
Pairs of Dual Gabor Frame Generators with Compact Support and Desired Frequency Localization

Ole Christensen

94
Citations
Extensions of Bessel sequences to dual pairs of frames

Ole Christensen;Hong Oh Kim;Rae Young Kim

93
Citations
Frames containing a Riesz basis and preservation of this property under perturbations

Peter G. Casazza;Ole Christensen

91
Citations
Approximately dual frames in Hilbert spaces and applications to Gabor frames

Ole Christensen;Richard S. Laugesen

86
Citations
Approximation of the Inverse Frame Operator and Applications to Gabor Frames

Peter G. Casazza;Ole Christensen

83
Citations
The finite section method and problems in frame theory

Ole Christensen;Thomas Strohmer

81
Citations
Weyl-Heisenberg frames, translation invariant systems and the Walnut representation

Peter G. Casazza;Ole Christensen;A.J.E.M. Janssen

80
Citations

Frequent Co-Authors

Peter G. Casazza University of Missouri

Yonina C. Eldar Weizmann Institute of Science

Thomas Strohmer University of California, Davis

Hans G. Feichtinger University of Vienna

Ulrik Birk Henriksen Technical University of Denmark

Christopher Heil Georgia Institute of Technology

Nigel J. Kalton University of Missouri

Roman Vershynin University of California, Irvine

External Links

Personal website of Ole Christensen Google Scholar page

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