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Special Matrices
H-index 3

Special Matrices

2300-7451

Published by: Walter de Gruyter

https://www.degruyter.com/journal/key/SPMA/html

Ranking & Metrics

Discipline name Position Best Scientists Publications D-Index
Mathematics 650 12 17 3

Additional Metrics

Number of Best Scientists*: 15
Documents by Best Scientists*: 19
Top 100 Ranked Scientists*: 1
SCIMAGO H-index: 13
SCIMAGO SJR: 0.695
Impact Factor: 1

Overview

Top Research Topics at Special Matrices?

The discussions in the journal mainly cover the fields of Pure mathematics, Combinatorics, Matrix (mathematics), Discrete mathematics and Algebra. Pure mathematics research presented in Special Matrices encompasses a variety of subjects, including Hadamard transform, Type (model theory) and Inverse. Research on Combinatorics addressed in Special Matrices frequently intersections with the field of Eigenvalues and eigenvectors.

In particular, the Eigenvalues and eigenvectors works presented emphasize discussions on Tridiagonal matrix. Special Matrices addresses concerns in Matrix (mathematics) which are intertwined with other disciplines, such as Mathematical analysis and Toeplitz matrix. The majority of Algebra studies in the journal are focused on the subject of Product (mathematics).

The work on Nonnegative matrix tackled in it brings together disciplines like Matrix splitting, Square matrix and Matrix function.

  • Pure mathematics (33.33%)
  • Combinatorics (33.33%)
  • Matrix (mathematics) (16.22%)

What are the most cited papers published in the journal?

  • Bordering method to compute Core-EP inverse (25 citations)
  • A note on the determinant of a Toeplitz-Hessenberg matrix (23 citations)
  • An update on a few permanent conjectures (13 citations)

Research areas of the most cited articles at Special Matrices:

The most cited articles investigate studies in Combinatorics, Matrix (mathematics), Discrete mathematics, Pure mathematics and Graph power. While the published papers focused on Discrete mathematics, they were also able to explore topics like Hessenberg matrix, Multinomial distribution, Toeplitz matrix and Integer matrix. In addition to Pure mathematics research, the most cited publications aim to explore topics under Generalized inverse, Hadamard transform, Core (graph theory) and Order (group theory).

What topics the last edition of the journal is best known for?

  • Algebra
  • Combinatorics
  • Eigenvalues and eigenvectors

The previous edition focused in particular on these issues:

The main points discussed in the journal deals with Matrix (mathematics), Combinatorics, Pure mathematics, Inverse and Applied mathematics. Matrix (mathematics) research featured in Special Matrices incorporates concerns from various other topics such as Combinatorial laplacian, Signless laplacian, Laplacian matrix, Mathematical analysis and Multiplicative perturbation. Special Matrices addresses concerns in Combinatorics which are intertwined with other disciplines, such as Positive systems, Spectral radius and Non-negative matrix factorization.

While the journal focused on Pure mathematics, it was also able to explore topics like Nilpotent matrix, Idempotent matrix, Characteristic polynomial and Fibonacci number. While Inverse is the focus of it, it also provided insights into the studies of Toeplitz matrix, Nonlinear system, Upper and lower bounds, Differential equation and Finite difference method. The journal focuses on Applied mathematics but the discussions also offer insight into other areas such as Energy (signal processing), Eigenvalues and eigenvectors, Diagonal and Runge–Kutta methods.

The most cited articles from the last journal are:

  • Inverse properties of a class of seven-diagonal (near) Toeplitz matrices (0 citations)
  • The A α -spectral radius of complements of bicyclic and tricyclic graphs with n vertices (0 citations)
  • Singular matrices that are products of two idempotents or products of two nilpotents (0 citations)

Papers citation over time

A key indicator for each journal is its effectiveness in reaching other researchers with the papers published at that venue.

The chart below presents the interquartile range (first quartile 25%, median 50% and third quartile 75%) of the number of citations of articles over time.

The top authors publishing in Special Matrices (based on the number of publications) are:

  • Charles R. Johnson (6 papers) absent at the last edition,
  • Ravindra B. Bapat (5 papers) absent at the last edition,
  • Shmuel Friedland (5 papers) absent at the last edition,
  • Luis Verde-Star (4 papers) absent at the last edition,
  • Dragomir Ž. Ðoković (4 papers) absent at the last edition.

The overall trend for top authors publishing in this journal is outlined below. The chart shows the number of publications at each edition of the journal for top authors.

Only papers with recognized affiliations are considered

The top affiliations publishing in Special Matrices (based on the number of publications) are:

  • College of William & Mary (7 papers) absent at the last edition,
  • Moscow State University (5 papers) absent at the last edition,
  • Uppsala University (5 papers) absent at the last edition,
  • Indian Statistical Institute (4 papers) absent at the last edition,
  • Georgia State University (4 papers) absent at the last edition.

The overall trend for top affiliations publishing in this journal is outlined below. The chart shows the number of publications at each edition of the journal for top affiliations.

Publication chance based on affiliation

The publication chance index shows the ratio of articles published by the best research institutions in the journal edition to all articles published within that journal. The best research institutions were selected based on the largest number of articles published during all editions of the journal.

The chart below presents the percentage ratio of articles from top institutions (based on their ranking of total papers).Top affiliations were grouped by their rank into the following tiers: top 1-10, top 11-20, top 21-50, and top 51+. Only articles with a recognized affiliation are considered.

During the most recent 2022 edition, 0.00% of publications had an unrecognized affiliation. Out of the publications with recognized affiliations, 12.50% were posted by at least one author from the top 10 institutions publishing in the journal. Another 12.50% included authors affiliated with research institutions from the top 11-20 affiliations. Institutions from the 21-50 range included 12.50% of all publications and 62.50% were from other institutions.

Returning Authors Index

A very common phenomenon observed among researchers publishing scientific articles is the intentional selection of journals they have already attended in the past. In particular, it is worth analyzing the case when the authors participate in the same journal from year to year.

The Returning Authors Index presented below illustrates the ratio of authors who participated in both a given as well as the previous edition of the journal in relation to all participants in a given year.

Returning Institution Index

The graph below shows the Returning Institution Index, illustrating the ratio of institutions that participated in both a given and the previous edition of the conference in relation to all affiliations present in a given year.

The experience to innovation index

Our experience to innovation index was created to show a cross-section of the experience level of authors publishing in a journal. The index includes the authors publishing at the last edition of a journal, grouped by total number of publications throughout their academic career (P) and the total number of citations of these publications ever received (C).

The group intervals were selected empirically to best show the diversity of the authors' experiences, their labels were selected as a convenience, not as judgment. The authors were divided into the following groups:

  • Novice - P < 5 or C < 25 (the number of publications less than 5 or the number of citations less than 25),
  • Competent - P < 10 or C < 100 (the number of publications less than 10 or the number of citations less than 100),
  • Experienced - P < 25 or C < 625 (the number of publications less than 25 or the number of citations less than 625),
  • Master - P < 50 or C < 2500 (the number of publications less than 50 or the number of citations less than 2500),
  • Star - P ≥ 50 and C ≥ 2500 (both the number of publications greater than 50 and the number of citations greater than 2500).

The chart below illustrates experience levels of first authors in cases of publications with multiple authors.

Top Publications

  • Graph isomorphism and Gaussian boson sampling

    Kamil Brádler;Shmuel Friedland;Josh Izaac;Nathan Killoran

    (2021)
    42 Citations
  • New constructions of nonregular cospectral graphs

    (2024)
    4 Citations
  • Linear transformations of tropical matrices preserving the cyclicity index

    Alexander Guterman;Elena Kreines;Carsten Thomassen

    (2021)
    4 Citations
  • The perturbation of Drazin inverse and dual Drazin inverse

    (2024)
    3 Citations
  • Some combinatorial matrices and their LU-decomposition

    Helmut Prodinger

    (2020)
    2 Citations
  • Doubly constrained totally positive line insertion

    Charles R. Johnson;David W. Allen

    (2020)
    2 Citations
  • <i>W</i>-MPD–<i>N</i>-DMP-solutions of constrained quaternion matrix equations

    (2023)
    2 Citations
  • Two-unitary complex Hadamard matrices of order 36

    (2024)
    2 Citations
  • Generating functions for a lattice path model introduced by Deutsch

    Helmut Prodinger

    (2021)
    2 Citations
  • Diagonal dominance and invertibility of matrices

    (2023)
    2 Citations

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