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D-Index & Metrics

Mathematics

D-Index
34
Citations
6779
World Ranking
2871
National Ranking
16

Christian Berg publication distribution in Mathematics in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Mathematics in 2026. The highlighted bar marks where Christian Berg sits on this spectrum.

42–46 publications: 3 scientists 47–51 publications: 5 scientists 52–56 publications: 7 scientists 57–61 publications: 20 scientists 62–66 publications: 14 scientists 67–71 publications: 25 scientists 72–76 publications: 19 scientists 77–81 publications: 35 scientists 82–86 publications: 50 scientists 87–91 publications: 60 scientists 92–96 publications: 86 scientists 97–101 publications: 84 scientists 102–106 publications: 83 scientists 107–111 publications: 90 scientists 112–116 publications: 99 scientists 117–121 publications: 90 scientists 122–126 publications: 91 scientists 127–131 publications: 109 scientists 132–136 publications: 110 scientists 137–141 publications: 98 scientists 142–146 publications: 112 scientists 147–151 publications: 102 scientists 152–156 publications: 88 scientists 157–161 publications: 106 scientists 162–166 publications: 82 scientists 167–171 publications: 102 scientists 172–176 publications: 77 scientists 177–181 publications: 81 scientists 182–186 publications: 78 scientists 187–191 publications: 71 scientists 192–196 publications: 92 scientists 197–201 publications: 64 scientists 202–206 publications: 69 scientists 207–211 publications: 64 scientists 212–216 publications: 62 scientists 217–221 publications: 58 scientists 222–226 publications: 53 scientists 227–231 publications: 50 scientists 232–236 publications: 46 scientists 237–241 publications: 46 scientists 242–246 publications: 46 scientists 247–251 publications: 43 scientists 252–256 publications: 29 scientists 257–261 publications: 45 scientists 262–266 publications: 30 scientists 267–271 publications: 33 scientists 272–276 publications: 34 scientists 277–281 publications: 30 scientists 282–286 publications: 31 scientists 287–291 publications: 21 scientists 292–296 publications: 34 scientists 297–301 publications: 26 scientists 302–306 publications: 10 scientists 307–311 publications: 17 scientists 312–316 publications: 23 scientists 317–321 publications: 13 scientists 322–326 publications: 16 scientists 327–331 publications: 26 scientists 332–336 publications: 13 scientists 337–341 publications: 13 scientists 342–346 publications: 16 scientists 347–351 publications: 17 scientists 352–356 publications: 12 scientists 357–361 publications: 18 scientists 362–366 publications: 18 scientists 367–371 publications: 9 scientists 372–376 publications: 11 scientists 377–381 publications: 8 scientists 382–386 publications: 8 scientists 387–391 publications: 9 scientists 392–396 publications: 9 scientists 397–401 publications: 8 scientists 402–406 publications: 11 scientists 407–411 publications: 6 scientists 412–416 publications: 6 scientists 417–421 publications: 9 scientists 422–426 publications: 8 scientists 427–431 publications: 5 scientists 432–436 publications: 8 scientists 437–441 publications: 8 scientists 442–446 publications: 4 scientists 447–451 publications: 4 scientists 452–456 publications: 4 scientists 457–461 publications: 2 scientists 462–466 publications: 2 scientists 467–471 publications: 4 scientists 472–476 publications: 3 scientists 477–481 publications: 3 scientists 482–486 publications: 6 scientists 487–491 publications: 3 scientists 492–496 publications: 5 scientists 497–501 publications: 5 scientists 502–506 publications: 1 scientists 507–511 publications: 6 scientists 512–516 publications: 4 scientists 517–521 publications: 1 scientists 522–526 publications: 3 scientists 527–531 publications: 1 scientists 532–536 publications: 4 scientists 537+ publications: 100 scientists
42 publications 537+

This scientist: 166 publications — 47th percentile

47% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 537 publications or more.

Christian Berg D-index placement in Mathematics in 2026

The chart shows the D-index (discipline H-index) distribution of Mathematics scientists ranked by Research.com in 2026. The highlighted bar marks where Christian Berg sits on this spectrum.

30 D-Index: 174 scientists 31 D-Index: 151 scientists 32 D-Index: 174 scientists 33 D-Index: 117 scientists 34 D-Index: 136 scientists 35 D-Index: 127 scientists 36 D-Index: 145 scientists 37 D-Index: 153 scientists 38 D-Index: 150 scientists 39 D-Index: 150 scientists 40 D-Index: 137 scientists 41 D-Index: 136 scientists 42 D-Index: 93 scientists 43 D-Index: 108 scientists 44 D-Index: 115 scientists 45 D-Index: 112 scientists 46 D-Index: 103 scientists 47 D-Index: 75 scientists 48 D-Index: 59 scientists 49 D-Index: 67 scientists 50 D-Index: 60 scientists 51 D-Index: 57 scientists 52 D-Index: 59 scientists 53 D-Index: 62 scientists 54 D-Index: 60 scientists 55 D-Index: 50 scientists 56 D-Index: 42 scientists 57 D-Index: 54 scientists 58 D-Index: 50 scientists 59 D-Index: 42 scientists 60 D-Index: 41 scientists 61 D-Index: 35 scientists 62 D-Index: 40 scientists 63 D-Index: 21 scientists 64 D-Index: 31 scientists 65 D-Index: 27 scientists 66 D-Index: 29 scientists 67 D-Index: 19 scientists 68 D-Index: 25 scientists 69 D-Index: 17 scientists 70 D-Index: 18 scientists 71 D-Index: 12 scientists 72 D-Index: 14 scientists 73 D-Index: 13 scientists 74 D-Index: 18 scientists 75 D-Index: 9 scientists 76 D-Index: 11 scientists 77 D-Index: 10 scientists 78 D-Index: 9 scientists 79 D-Index: 16 scientists 80 D-Index: 12 scientists 81 D-Index: 10 scientists 82 D-Index: 5 scientists 83 D-Index: 5 scientists 84 D-Index: 13 scientists 85 D-Index: 6 scientists 86+ D-Index: 99 scientists
30 D-Index 86+

This scientist: 34 D-Index — 21st percentile

21% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 86 D-Index or more.

Overview

Christian Berg is affiliated with the University of Copenhagen in Denmark and specializes primarily in Mathematics, with substantial contributions in Mathematical Physics and Applied Mathematics. Their research extends into interdisciplinary areas including Ocean Engineering and Computational Theory.

Their recent publications cover a range of topics from mathematical theory to practical engineering applications. Notable papers include:

  • "Modeling and Numerical Implementation of Managed-Pressure-Drilling Systems for the Assessment of Pressure-Control Systems," 2020, published in SPE Drilling & Completion
  • "Self-adjoint operators associated with Hankel moment matrices," 2022, published in Journal of Functional Analysis
  • "A Family of Entire Functions Connecting the Bessel Function J₁ and the Lambert W Function," 2020, published in Constructive Approximation
  • "Pressure wave propagation in Managed Pressure Drilling model comparison with real life data," 2020, published in Linköping electronic conference proceedings
  • "The Influx Management Envelope, Sensitivity of Model Choice," 2020, published in SPE/IADC Managed Pressure Drilling and Underbalanced Operations Conference and Exhibition

Their research spans several key topics within mathematical and engineering sciences, such as:

  • Spectral Theory in Mathematical Physics
  • Mathematical Functions and Polynomials
  • Drilling and Well Engineering
  • Matrix Theory and Algorithms
  • Numerical Methods in Inverse Problems
  • Hydraulic Fracturing and Reservoir Analysis
  • Oil and Gas Production Techniques

Christian Berg has collaborated extensively with a number of researchers, including:

  • Ryszard Szwarc
  • Jon Åge Stakvik
  • Laura Iapichino
  • W.H.A. Schilders
  • Nathan van de Wouw

Their work is frequently published in venues such as:

  • arXiv (Cornell University)
  • ZI Zahnärztliche Implantologie
  • SPE Drilling & Completion
  • Journal of Functional Analysis
  • Constructive Approximation

In addition to journal articles and conference papers, Christian Berg has authored a book published by oekom verlag: Ist Nachhaltigkeit utopisch? Wie wir Barrieren überwinden und zukunftsfähig handeln (2020), which has been cited 117 times.

Best Publications

  • Harmonic Analysis on Semigroups

    Christian Berg;Jens Peter Reus Christensen;Paul Ressel

  • Potential Theory on Locally Compact Abelian Groups

    Christian Berg;Gunnar Forst

  • Harmonic Analysis on Semigroups: Theory of Positive Definite and Related Functions

    Christian Berg;Jens Peter Reus Christensen;Paul Ressel

  • Integral representation of some functions related to the Gamma function

    Christian Berg

  • Density questions in the classical theory of moments

    Christian Berg;J. P. Reus Christensen

  • A remark on the multidimensional moment problem

    C. Berg;J. P. R. Christensen;C. U. Jensen

  • Some classes of completely monotonic functions

    Horst Alzer;Christian Berg

  • Some classes of completely monotonic functions, II

    Horst Alzer;Christian Berg

  • Positive definite functions on Abelian semigroups

    Christian Berg;Jens Peter Reus Christensen Christensen;Paul Ressel

  • Indeterminate moment problems and the theory of entire functions

    Christian Berg

  • Rotation invariant moment problems

    Christian Berg;Marco Thill

  • The Nevanlinna parametrization for some indeterminate Stieltjes moment problems associated with birth and death processes

    Christian Berg;Galliano Valent

  • Stieltjes-Pick-Bernstein-Schoenberg and their connection to complete monotonicity

    Christian Berg

  • From Schoenberg Coefficients to Schoenberg Functions

    Christian Berg;Emilio Porcu

  • A completely monotone function related to the Gamma function

    Christian Berg;Henrik L. Pedersen

  • Exponentially bounded positive definite functions

    Christian Berg;P. H. Maserick

  • Generation of generators of holomorphic semigroups

    Christian Berg;Khristo Boyadzhiev;Ralph Delaubenfels

  • Q-Hermite Polynomials and Classical Orthogonal Polynomials

    Christian Berg;Mourad E. H. Ismail

  • The Cube of a Normal Distribution is Indeterminate

    Christian Berg

  • The Dagum family of isotropic correlation functions

    Christian Berg;Jorge Mateu;Emilio Porcu

  • Small eigenvalues of large Hankel matrices: The indeterminate case

    Christian Berg;Yang Chen;Mourad E. H. Ismail

Frequent Co-Authors

Jens Peter Christensen
Jens Peter Christensen University of Copenhagen
Antonio J. Durán
Antonio J. Durán University of Seville
Emilio Porcu
Emilio Porcu Khalifa University
Mette M. Rosenkilde
Mette M. Rosenkilde University of Copenhagen
Mourad E. H. Ismail
Mourad E. H. Ismail University of Louisiana at Lafayette
Jorge Mateu
Jorge Mateu Jaume I University
Richard A. Kroczek
Richard A. Kroczek Robert Koch Institute
Thomas Benfield
Thomas Benfield Copenhagen University Hospital
Feng Qi
Feng Qi Henan Polytechnic University

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