Areas Associated to a Quadrilateral
Oleg Mushkarov1), Nikolai Nikolov1,2)
1)Institute of Mathematics and Informatics, Bulgarian Academy of Sciences
2)University of Library Studies and Information Technologies
https://doi.org/10.53656/math2023-5-1-are
Abstract. We study the relationship between the areas of the consecutive…
On the Dynamics of a Class of Third-Order Polynomial Difference Equations with Infinite Number of Period-Three Solutions
Jasmin Bektešević, Vahidin Hadžiabdić,
Midhat Mehuljić, Sadjit Metović, Haris Lulić
University of Sarajevo (Bosnia and Herzegovina)
https://doi.org/10.53656/math2023-5-2-ont
Abstract. We study the local dynamics and global character of third-order polynomial difference in the first octant of initial conditions with infinite number of prime period-three solutions (three cycles)…
System for Retrieval and Visualization of Data from the Internet
Georgi Cholakov 1), Emil Doychev 1), Svetla Koeva 2)
1) University of Plovdiv “P. Hilendarsky” – Plovdiv (Bulgaria)
2) Institute for Bulgarian Language
Bulgarian Academy of Sciences
https://doi.org/10.53656/math2023-5-3-sys
Abstract. The article presents a system that dynamically displays the availability of language datasets and language models found in large repositories such as Hugging Face...
Evaluatiоn of Children’s Behaviour in the Context of an Educational Mobile Game
Margarita Gocheva,
Nikolay Kasakliev,
Elena Somova
University of Plovdiv “Paisii Hilendarski” (Bulgaria)
https://doi.org/10.53656/math2023-5-4-eva
Abstract. The paper presents a study aiming to propose a model and system for mobile gamebased learning in which the behaviour of the learner during the game is taken into account, considering characteristics such as noise level, movements of the mobile device, switching between applications and the availability of Wi-Fi network and Internet connection…
Choosing an Appropriate Model for Investigating the Tasks of School in Mathematics after Grade VII According to IRT Methods
Pavlin Tsonev
“Georgi Benkovski” Bulgarian Air Force Academy - Dolna Mitropolia, Bulgaria
https://doi.org/10.53656/math2023-5-5-cho
Abstract. In the article the methods of Item Response Theory were used for analyzing the measuring qualities of the test tasks with a selectable answer from the National External Evaluation for the Grade 7 conducted in 2021 in the Sofia city and Pleven districts...
Competency-Based Model for Conducting Distance Online Synchronous Education of the Students
Desislava Georgieva
St. Cyril and St. Methodius University of Veliko Tarnovo
https://doi.org/10.53656/math2023-5-6-com
Abstract. This research examines the problem of training future primary school teachers and math teachers in the conditions of the Covid-19 crisis…
Algorithm for Solution of a Transportation Problem with MS Excel Solver
Mariyan Milev1) Velika Kuneva2)
1) Sofia University
2) Agricultural University – Plovdiv (Bulgaria)
https://doi.org/10.53656/math2023-5-7-alg
Abstract. In this article, an applied solution to a transport problem using MS Excel software (solver) is presented...
Selection and Justification of Criteria for Comparative Analysis of Lightweight Ciphers
Dilyana Dimitrova
Nikola Vaptsarov Naval Academy - Varna
https://doi.org/10.53656/math2023-5-8-sel
Abstract. The main aim of the paper is selection of criteria for evaluation and analysis of lightweight ciphers with different structure and modes of operation to serve in the subsequent comparative analysis of selected ciphers, finalists in the NIST’s competition for new lightweight cryptographic algorithm...
