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D-Index & Metrics

Mathematics

D-Index
37
Citations
4641
World Ranking
2541
National Ranking
1053

Subhash C. Kochar 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 Subhash C. Kochar 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: 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 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: 130 publications — 27th percentile

27% of scientists in this discipline score the same or lower.

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

Subhash C. Kochar 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 Subhash C. Kochar 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: 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: 37 D-Index — 33rd percentile

33% of scientists in this discipline score the same or lower.

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

Overview

Subhash C. Kochar is affiliated with Portland State University in the United States and conducts research primarily in the fields of Mathematics and Decision Sciences. Their work focuses extensively on topics within statistics and probability, particularly in areas such as statistical distribution estimation, probability and risk models, Bayesian methods, and reliability optimization.

Their scholarly output includes contributions to journals and archives in applied probability and statistical sciences. Notable recent papers by Kochar include:

  • Some new results on stochastic comparisons of coherent systems using signatures, 2020, Journal of Applied Probability
  • Dependence comparisons of order statistics in the proportional hazards model, 2022, Probability in the Engineering and Informational Sciences
  • Dependence comparisons of order statistics in the proportional hazards model, 2022, arXiv (Cornell University)
  • Dependence among order statistics for time-transformed exponential models, 2023, Probability in the Engineering and Informational Sciences

Kochar's research spans a variety of topics that include:

  • Statistical Distribution Estimation and Applications
  • Probability and Risk Models
  • Statistical Methods and Bayesian Inference
  • Bayesian Methods and Mixture Models
  • Probabilistic and Robust Engineering Design
  • Reliability and Maintenance Optimization

The subfields related to their research activity include:

  • Statistics and Probability
  • Management Science and Operations Research
  • Artificial Intelligence
  • Statistics, Probability and Uncertainty
  • Safety, Risk, Reliability and Quality

Kochar frequently publishes in the following venues:

  • Probability in the Engineering and Informational Sciences
  • Journal of Applied Probability
  • arXiv (Cornell University)

Collaborations are part of their research profile, with co-authorship involving individuals such as Ebrahim Amini-Seresht, Baha-Eldin Khaledi, and Fabio Spizzichino.

Best Publications

  • The signature of a coherent system and its application to comparisons among systems

    Subhash Kochar;Hari Mukerjee;Francisco J. Samaniego

  • Aspects of positive ageing

    Jayant V. Deshpande;Subhash C. Kochar;Harshinder Singh

  • Stochastic comparisons of parallel systems of heterogeneous exponential components

    Richard Dykstra;Subhash Kochar;Javier Rojo

  • SOME NEW RESULTS ON STOCHASTIC COMPARISONS OF PARALLEL SYSTEMS

    Baha-Eldin Khaledi;Subhash Kochar

  • Partial orderings of distributions based on right-spread functions

    J. M. Fernandez-Ponce;S. C. Kochar;J. Muñoz-Perez

  • On tail-ordering and comparison of failure rates

    Isha Bagai;Subhash C. Kochar

  • The Total Time on Test Transform and the Excess Wealth Stochastic Orders of Distributions

    Subhash C. Kochar;Xiaohu Li;Moshe Shaked

  • Stochastic comparisons of parallel systems when components have proportional hazard rates

    Subhash Kochar;Maochao Xu

  • Partial orderings of life distributions with respect to their aging properties

    Subhash C. Kochar;Douglas P. Wiens

  • Some Tests for Comparing Cumulative Incidence Functions and Cause-Specific Hazard Rates

    Emad-Eldin A. A. Aly;Subhash C. Kochar;Ian W. McKeague

  • Some New Results on Stochastic Comparisons of Spacings from Heterogeneous Exponential Distributions

    Subhash Kochar;Javier Rojo

  • Inference for Likelihood Ratio Ordering in the Two-Sample Problem

    Richard Dykstra;Subhash Kochar;Tim Robertson

  • Statistical Inference for Uniform Stochastic Ordering in Several Populations

    Richard Dykstra;Subhash Kochar;Tim Robertson

  • Stochastic comparisons of order statistics in the scale model

    Baha-Eldin Khaledi;Sepideh Farsinezhad;Subhash C. Kochar

  • Weibull distribution: Some stochastic comparisons results

    Baha-Eldin Khaledi;Subhash Kochar

  • Stochastic Orders for Spacings of Heterogeneous Exponential Random Variables

    Subhash C Kochar;Ramesh Korwar

  • A general composition theorem and its applications to certain partial orderings of distributions

    Kumar Joag-dev;Subhash Kochar;Frank Proschan

  • On the dependence structure of order statistics

    Jean Avérous;Christian Genest;Subhash C. Kochar

  • Stochastic Order Relations Among Parallel Systems from Weibull Distributions

    Nuria Torrado;Subhash C. Kochar

  • Bivariate Dependence Properties of Order Statistics

    Philip J. Boland;Myles Hollander;Kumar Joag-Dev;Subhash Kochar

Frequent Co-Authors

Christian Genest
Christian Genest McGill University
Paul S. F. Yip
Paul S. F. Yip University of Hong Kong
Myles Hollander
Myles Hollander Florida State University
Moshe Shaked
Moshe Shaked University of Arizona
Frank Proschan
Frank Proschan Florida State University

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