**2. Statistics of the Special Issue**

The statistics of papers submitted to this Special Issue for both published and rejected items are as follows: 23 total submissions, of which 16 were published (69.6%) [7–23] and 7 rejected (30.4%). The authors' geographical distribution is shown in Table 1, where it can be seen that the 67 authors are from 13 different countries. Note that it is usual for a paper to be written by more than one author, and for authors to collaborate with authors with different affiliations or multiple affiliations.

Simulation in Mechanics and Dynamic Systems. *Mathematics* **2022**, *10*, 448. https://doi.org/10.3390/ math10030448

**Citation:** Scutaru, M.L.; Pruncu, C.-I. Mathematical Modeling and

Received: 19 January 2022 Accepted: 20 January 2022 Published: 30 January 2022

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**Copyright:** © 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/ 4.0/).

**Table 1.** Geographic distribution of authors by country.


#### **3. Authors of the Special Issue**

The authors of this Special Issue and their main affiliations are summarized in Table 2; it can be seen that there are three authors on average per manuscript.




**Table 2.** *Cont.*


**Table 2.** *Cont.*

#### **4. Brief Overview of the Contributions to the Special Issue**

This analysis of topics identifies or summarizes the research undertaken. This section classifies the manuscripts according to the topics covered in this Special Issue. There are three topics that are dominant, namely: the modeling of the multibody systems with symmetries, symmetry in applied mathematics, and analytical methods in symmetric multibody systems.

**Author Contributions:** Conceptualization, M.L.S. and C.-I.P.; methodology, M.L.S. and C.-I.P.; software, M.L.S. and C.-I.P.; validation, M.L.S. and C.-I.P.; formal analysis, M.L.S. and C.-I.P.; investigation, M.L.S. and C.-I.P.; resources, M.L.S. and C.-I.P.; data curation, M.L.S. and C.-I.P.; writing—original draft preparation, M.L.S. and C.-I.P.; writing—review and editing, M.L.S. and C.-I.P.; visualization, M.L.S. and C.-I.P.; supervision, M.L.S. and C.-I.P.; project administration, M.L.S. and C.-I.P. All authors have read and agreed to the published version of the manuscript.

**Funding:** This research received no external funding.

**Institutional Review Board Statement:** Not applicable.

**Informed Consent Statement:** Not applicable.

**Data Availability Statement:** Not applicable.

**Conflicts of Interest:** The authors declare no conflict of interest.

#### **References**

