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Electronic Journal of Qualitative Theory of Differential Equations
H-index 8

Electronic Journal of Qualitative Theory of Differential Equations

1417-3875

Published by: Bolyai Institute

https://www.math.u-szeged.hu/ejqtde/

Ranking & Metrics

Discipline name Position Best Scientists Publications D-Index
Mathematics 333 33 56 8

Additional Metrics

Number of Best Scientists*: 42
Documents by Best Scientists*: 64
Top 100 Ranked Scientists*: 2
SCIMAGO H-index: 41
SCIMAGO SJR: 0.434
Impact Factor: N/A

Overview

Top Research Topics at Electronic Journal of Qualitative Theory of Differential Equations?

The scientific interests tackled in the journal are Mathematical analysis, Nonlinear system, Applied mathematics, Boundary value problem and Pure mathematics. Mathematical analysis study tackled is connected to the field of Type (model theory). The studies tackled, which mainly focus on Nonlinear system, apply to Bounded function as well.

Research on Boundary value problem presented in the journal focuses, in particular, on Mixed boundary condition, Free boundary problem and Robin boundary condition. The studies on Pure mathematics discussed can also contribute to research in the domains of Discrete mathematics and Class (set theory). The journal connects research in Order (group theory) with the related topic of Oscillation.

  • Mathematical analysis (60.68%)
  • Nonlinear system (19.28%)
  • Applied mathematics (18.11%)

What are the most cited papers published in the journal?

  • DISCRETE FRACTIONAL CALCULUS WITH THE NABLA OPERATOR (267 citations)
  • Positive solutions of a boundary value problem for a nonlinear fractional differential equation. (143 citations)
  • Nontrivial solutions for fractional q-difference boundary value problems (129 citations)

Research areas of the most cited articles at Electronic Journal of Qualitative Theory of Differential Equations:

The journal publications cover a variety of subjects, including Mathematical analysis, Boundary value problem, Nonlinear system, Applied mathematics and Fixed-point theorem. Fractional calculus, Differential equation, Mixed boundary condition, Fractional differential and Order (group theory) are all areas of Mathematical analysis tackled in the most cited papers. The Boundary value problem research presented in the published articles explores the relationship between Cone (topology) and the closely related topic of Ode.

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

  • Mathematical analysis
  • Quantum mechanics
  • Algebra

The previous edition focused in particular on these issues:

Mathematical analysis, Pure mathematics, Applied mathematics, Class (set theory) and Mathematical physics are the subjects of interest in Electronic Journal of Qualitative Theory of Differential Equations. It explores topics in Mathematical analysis which can be helpful for research in disciplines like Type (model theory), Sign changing and Ground state. Pure mathematics research presented in it encompasses a variety of subjects, including Quadratic equation and Multiplicity (mathematics).

The concepts on Applied mathematics presented in Electronic Journal of Qualitative Theory of Differential Equations can also apply to other research fields, including Term (time), Order (group theory), Uniqueness and Ordinary differential equation. Electronic Journal of Qualitative Theory of Differential Equations connects research in Order (group theory) with the related topic of Nonlinear system.

The most cited articles from the last journal are:

  • On the stochastic allen–cahn equation on networks with multiplicative noise (3 citations)
  • Stability index of linear random dynamical systems (2 citations)
  • Null controllability for a singular heat equation with a memory term (2 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 Electronic Journal of Qualitative Theory of Differential Equations (based on the number of publications) are:

  • Johnny Henderson (21 papers) published 1 paper at the last edition the same number as at the previous edition,
  • Mouffak Benchohra (16 papers) absent at the last edition,
  • Stevo Stević (15 papers) published 1 paper at the last edition the same number as at the previous edition,
  • Sotiris Ntouyas (13 papers) absent at the last edition,
  • Theodore Burton (13 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 Electronic Journal of Qualitative Theory of Differential Equations (based on the number of publications) are:

  • University of Santiago de Compostela (9 papers) published 1 paper at the last edition the same number as at the previous edition,
  • Comenius University in Bratislava (9 papers) published 1 paper at the last edition,
  • Masaryk University (9 papers) published 1 paper at the last edition,
  • University of Ioannina (8 papers) absent at the last edition,
  • University of Tennessee at Chattanooga (6 papers) published 1 paper 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 2021 edition, 25.33% 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 7.14% included authors affiliated with research institutions from the top 11-20 affiliations. Institutions from the 21-50 range included 30.36% of all publications and 50.00% 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

  • New class of practically solvable systems of difference equations of hyperbolic-cotangent-type

    Stevo Stević

    (2020)
    17 Citations
  • Variational differential inclusions without ellipticity condition

    Zhenhai Liu;Zhenhai Liu;Roberto Livrea;Dumitru Motreanu;Dumitru Motreanu;Shengda Zeng;Shengda Zeng

    (2020)
    15 Citations
  • Limit cycles in mass-conserving deficiency-one mass-action systems

    (2022)
    14 Citations
  • Strongly formal Weierstrass non-integrability for polynomial differential systems in C 2

    Jaume Giné;Jaume Llibre

    (2020)
    13 Citations
  • New oscillation criteria for third-order differential equations with bounded and unbounded neutral coefficients

    (2021)
    12 Citations
  • Delayed linear difference equations: The method of Ƶ-transform

    Nazim Mahmudov

    (2020)
    12 Citations
  • Existence results for a clamped beam equation with integral boundary conditions

    Alberto Cabada;Rochdi Jebari;Rochdi Jebari;Rochdi Jebari

    (2020)
    11 Citations
  • Sharp results for oscillation of second-order neutral delay differential equations

    (2023)
    9 Citations
  • Crossing limit cycles for piecewise linear differential centers separated by a reducible cubic curve

    Jeidy Jimenez;Jaume Llibre;Joao Medrado

    (2020)
    8 Citations
  • Existence and Ulam type stability for nonlinear Riemann-Liouville fractional differential equations with constant delay

    Ravi P. Agarwal;Snezhana Hristova;Donal O’Regan

    (2020)
    8 Citations

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