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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Mathematics 35 2794 2496 1143 961 148 4771

Klaus Schmitt publications per year

The chart shows the history of publications by Klaus Schmitt between 1967 and 2020, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Klaus Schmitt published across 54 years, from 1967 to 2020, averaging 2.8 papers a year. Output peaked at 11 publications in 1988. 2 of the 153 publications appeared in the last two years.

No. of publications
2 4 6 8 10
Bar chart. Horizontal axis: year, 1967 to 2020. Vertical axis: number of publications, 0 to 11. Peak 11 publications in 1988. 1967: 2 publications 1968: 2 publications 1969: 5 publications 1970: 2 publications 1971: 3 publications 1972: 5 publications 1973: 3 publications 1974: 3 publications 1975: 3 publications 1976: 1 publication 1977: 5 publications 1978: 6 publications 1979: 3 publications 1980: 2 publications 1981: 2 publications 1982: 1 publication 1983: 3 publications 1984: 4 publications 1985: 4 publications 1986: 3 publications 1987: 3 publications 1988: 11 publications 1989: 0 publications 1990: 4 publications 1991: 1 publication 1992: 5 publications 1993: 2 publications 1994: 3 publications 1995: 5 publications 1996: 5 publications 1997: 11 publications 1998: 3 publications 1999: 3 publications 2000: 4 publications 2001: 1 publication 2002: 5 publications 2003: 0 publications 2004: 5 publications 2005: 3 publications 2006: 1 publication 2007: 1 publication 2008: 0 publications 2009: 2 publications 2010: 0 publications 2011: 4 publications 2012: 2 publications 2013: 0 publications 2014: 0 publications 2015: 1 publication 2016: 0 publications 2017: 3 publications 2018: 1 publication 2019: 1 publication 2020: 1 publication
1967 2020

153 publications in total across all disciplines

View publications per year as a table
Klaus Schmitt: publications per year, 1967 to 2020
Year Publications
1967 2
1968 2
1969 5
1970 2
1971 3
1972 5
1973 3
1974 3
1975 3
1976 1
1977 5
1978 6
1979 3
1980 2
1981 2
1982 1
1983 3
1984 4
1985 4
1986 3
1987 3
1988 11
1989 0
1990 4
1991 1
1992 5
1993 2
1994 3
1995 5
1996 5
1997 11
1998 3
1999 3
2000 4
2001 1
2002 5
2003 0
2004 5
2005 3
2006 1
2007 1
2008 0
2009 2
2010 0
2011 4
2012 2
2013 0
2014 0
2015 1
2016 0
2017 3
2018 1
2019 1
2020 1
Total 153
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Klaus Schmitt publications per year - data summary

  • Klaus Schmitt, a Mathematics scholar from University of Utah, has 153 publications recorded across 54 years, from 1967 to 2020.
  • The oldest publication on record dates to 1967 and the most recent to 2020.
  • The most productive years are 1988 and 1997, with 11 publications each.
  • The least productive years with any output are 1976, 1982, 1991, 2001 and others, with 1 publication each.
  • 7 of the 54 years in the span carry no publications at all (1989, 2003, 2008, 2010 and others).
  • The rate of publication averages 2.8 papers per year over the whole span, or 3.3 per year counting only the 47 years with at least one publication.
  • The last 5 years on the chart (2016-2020) hold 6 publications, 4% of the career total.
  • Split into equal eras - 1967-1984: 55 publications (3.1 per year); 1985-2002: 73 publications (4.1 per year); 2003-2020: 25 publications (1.4 per year).
  • Comparing the opening and closing eras, the overall trend of publication is declining.

Klaus Schmitt 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 Klaus Schmitt sits on this spectrum.

No. of scientists
25 50 75 100
Bar chart with 100 bars. Horizontal axis: publications, 42–46 to 537+. Vertical axis: number of scientists, 0 to 112. Most scientists, 112, have 142–146 publications. The last bar groups every scientist with 537 publications or more. The highlighted bar, 147–151 publications, is where this scientist sits. 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: 83 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 scientist 507–511 publications: 6 scientists 512–516 publications: 4 scientists 517–521 publications: 1 scientist 522–526 publications: 3 scientists 527–531 publications: 1 scientist 532–536 publications: 4 scientists 537+ publications: 100 scientists
42–46 publications 537+

This scientist: 148 publications — 37th percentile

37% of scientists in this discipline score the same or lower.

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

View publications distribution as a table
Number of Mathematics scientists by publication count, Research.com 2026 ranking edition. Based on 3,584 ranked scientists.
Publications Scientists This scientist
42–46 3
47–51 5
52–56 7
57–61 20
62–66 14
67–71 25
72–76 19
77–81 35
82–86 50
87–91 60
92–96 86
97–101 84
102–106 83
107–111 90
112–116 99
117–121 90
122–126 91
127–131 109
132–136 110
137–141 98
142–146 112
147–151 102 148
152–156 88
157–161 106
162–166 83
167–171 102
172–176 77
177–181 81
182–186 78
187–191 71
192–196 92
197–201 64
202–206 69
207–211 64
212–216 62
217–221 58
222–226 53
227–231 50
232–236 46
237–241 46
242–246 46
247–251 43
252–256 29
257–261 45
262–266 30
267–271 33
272–276 34
277–281 30
282–286 31
287–291 21
292–296 34
297–301 26
302–306 10
307–311 17
312–316 23
317–321 13
322–326 16
327–331 26
332–336 13
337–341 13
342–346 16
347–351 17
352–356 12
357–361 18
362–366 18
367–371 9
372–376 11
377–381 8
382–386 8
387–391 9
392–396 9
397–401 8
402–406 11
407–411 6
412–416 6
417–421 9
422–426 8
427–431 5
432–436 8
437–441 8
442–446 4
447–451 4
452–456 4
457–461 2
462–466 2
467–471 4
472–476 3
477–481 3
482–486 6
487–491 3
492–496 5
497–501 5
502–506 1
507–511 6
512–516 4
517–521 1
522–526 3
527–531 1
532–536 4
537+ 100
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Klaus Schmitt publication distribution in Mathematics in 2026 - data summary

  • The chart plots the publication count of all 3,584 Mathematics scientists ranked by Research.com in 2026, grouped into 100 ranges running from 42–46 to 537+ publications.
  • Klaus Schmitt, a Mathematics scholar from University of Utah, records 148 publications - the 37th percentile of the discipline.
  • 37% of ranked Mathematics scientists score the same or lower than Klaus Schmitt, and about 63% score higher.
  • The median of the discipline falls in the 172–176 publications range, and Klaus Schmitt ranks below the median.
  • The most crowded range is 142–146 publications, holding 112 scientists (3% of the field).
  • 47% of the field sits in the lowest quarter of the value range (up to 162–166 publications), so the distribution leans towards the lower end of the scale.
  • The final bar has no upper bound: it groups every scientist with 537 publications or more, 100 scientists in all (3% of the field).

Klaus Schmitt 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 Klaus Schmitt sits on this spectrum.

No. of scientists
50 100 150
Bar chart with 57 bars. Horizontal axis: D-Index, 30 to 86+. Vertical axis: number of scientists, 0 to 174. Most scientists, 174, have 30 D-Index. The last bar groups every scientist with 86 D-Index or more. The highlighted bar, 35 D-Index, is where this scientist sits. 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: 138 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: 35 D-Index — 25th percentile

25% of scientists in this discipline score the same or lower.

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

View D-Index distribution as a table
Number of Mathematics scientists by D-index, Research.com 2026 ranking edition. Based on 3,584 ranked scientists.
D-Index Scientists This scientist
30 174
31 151
32 174
33 117
34 136
35 127 35
36 145
37 153
38 150
39 150
40 138
41 136
42 93
43 108
44 115
45 112
46 103
47 75
48 59
49 67
50 60
51 57
52 59
53 62
54 60
55 50
56 42
57 54
58 50
59 42
60 41
61 35
62 40
63 21
64 31
65 27
66 29
67 19
68 25
69 17
70 18
71 12
72 14
73 13
74 18
75 9
76 11
77 10
78 9
79 16
80 12
81 10
82 5
83 5
84 13
85 6
86+ 99
Download as CSV

Klaus Schmitt D-index placement in Mathematics in 2026 - data summary

  • The chart plots the discipline H-index (D-index) of all 3,584 Mathematics scientists ranked by Research.com in 2026, grouped into 57 ranges running from 30 to 86+ D-Index.
  • Klaus Schmitt, a Mathematics scholar from University of Utah, records 35 D-Index - the 25th percentile of the discipline.
  • 25% of ranked Mathematics scientists score the same or lower than Klaus Schmitt, and about 75% score higher.
  • The median of the discipline falls in the 42 D-Index range, and Klaus Schmitt ranks below the median.
  • The most crowded range is 30 D-Index, holding 174 scientists (5% of the field).
  • 58% of the field sits in the lowest quarter of the value range (up to 44 D-Index), so the distribution is heavily right-skewed and high scores are rare.
  • The final bar has no upper bound: it groups every scientist with 86 D-Index or more, 99 scientists in all (3% of the field).

Overview

Klaus Schmitt is a researcher affiliated with the University of Utah in the United States. Their work spans across the main fields of Mathematics and Computer Science, with a significant focus on Applied Mathematics, Computational Theory and Mathematics, and Mathematical Physics.

Their research addresses topics such as Differential Equations and Boundary Problems, Matrix Theory and Algorithms, and Spectral Theory in Mathematical Physics. This reflects a multidisciplinary approach combining theoretical and applied aspects of mathematical sciences.

Schmitt's recent publications include the paper titled "Bifurcation problems for second order systems," published in 2020 in the journal Nonlinear Analysis. This work contributes to the understanding of complex behaviors in nonlinear systems.

  • Recent papers: Bifurcation problems for second order systems (2020, Nonlinear Analysis)

Their publication record features contributions exclusively in the journal Nonlinear Analysis, indicating a specialized engagement with nonlinear mathematical phenomena.

  • Frequent publication venues: Nonlinear Analysis

Klaus Schmitt has collaborated independently without frequent co-authors listed, suggesting a research style that may emphasize individual contributions or diverse collaborative efforts.

  • Frequent co-authors: None listed

Their work covers both broad and specialized mathematical investigations, indicating expertise in theoretical frameworks and computational methods. This includes dealing with boundary value problems in differential equations as well as algorithmic and spectral properties related to matrices and physical systems.

Best Publications

  • On the existence of soliton solutions to quasilinear Schrödinger equations

    Markus Poppenberg;Klaus Schmitt;Zhi-Qiang Wang

  • Permanence and the dynamics of biological systems.

    Vivian Hutson;Klaus Schmitt

  • The Liouville–Bratu–Gelfand Problem for Radial Operators

    Jon T Jacobsen;Klaus Schmitt

  • On principal eigenvalues for quasilinear elliptic differential operators: an Orlicz-Sobolev space setting

    M. García-Huidobro;Vy Khoi Le;Rául Manásevich;Klaus Schmitt

  • Mountain pass type solutions for quasilinear elliptic equations

    Ph. Clément;M. García-Huidobro;R. Manásevich;K. Schmitt

  • On positive solutions of semilinear elliptic equations

    Unknown

  • Boundary value problems for quasilinear second order elliptic equations

    Klaus Schmitt

  • Periodic boundary value problems for systems of second order differential equations

    J.W Bebernes;J.W Bebernes;K Schmitt

  • Boundary value problems for infinite systems of second-order differential equations

    K Schmitt;R Thompson

  • Nonzero solutions of boundary value problems for second order ordinary and delay-differential equations

    G.B Gustafson;K Schmitt

  • A class of nonlinear Sturm-Liouville problems with infinitely many solutions

    Renate Schaaf;Klaus Schmitt

  • Nonlinear eigenvalue problems with the parameter near resonance

    Jean Mawhin;Klaus Schmitt

  • Positive Solutions of Quasilinear Boundary Value Problems

    D.D. Hai;K. Schmitt;R. Shivaji

  • Landesman-Lazer Type Problems At An Eigenvalue Of Odd Multiplicity

    Jean Mawhin;Klaus Schmitt

  • Periodic solutions of systems of second-order differential equations

    Klaus Schmitt

  • On Boundary Value Problems for Degenerate Quasilinear Elliptic Equations and Inequalities

    Vy Khoi Le;Vy Khoi Le;Klaus Schmitt;Klaus Schmitt

  • An application of the shooting method to boundary value problems for second order delay equations

    K de Nevers;K Schmitt

  • On eigenvalue problems for nondifferentiable mappings

    K Schmitt;H.L Smith

  • Global Bifurcation in Variational Inequalities: Applications to Obstacle and Unilateral Problems

    Vy Khoi Le;Klaus Schmitt

  • Periodic solutions of nonlinear second order differential equations

    Unknown

  • THE CONTRACTION MAPPING PRINCIPLE AND SOME APPLICATIONS

    Robert M. Brooks;Klaus Schmitt

  • Boundary value problems with jumping nonlinearities

    Klaus Schmitt

  • Boundary value problems for differential equations with deviating arguments

    Unknown

Frequent Co-Authors

Raúl Manásevich
Raúl Manásevich University of Chile
Jean Mawhin
Jean Mawhin Université Catholique de Louvain
Zhi-Qiang Wang
Zhi-Qiang Wang Utah State University
Hans G. Othmer
Hans G. Othmer University of Minnesota
Heinz-Otto Peitgen
Heinz-Otto Peitgen University of Bremen
Hal L. Smith
Hal L. Smith Arizona State University

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