Geodesic

Volume 50 (2021) no.

Sommaire

Fifty Spring Conferences of the Union of Bulgarian Mathematicians - the Tradition Continues
p. 9-22
Academician Popivanov at the Age of 75 – a Life between Mathematics and Dostoevsky
p. 32-38
90th Anniversary of Prof. Racho Denchev
p. 39-41
Evolution flow and ground states for fractional Schrödinger-Hartree equations
p. 45-54
Stability conditions and spectra
p. 55-67
Role of education and research for artificial intelligence development in Bulgaria until 2030
p. 71-82
Preface
p. 5-6
Deterministic algorithm for optimising the direction numbers of the Sobol’ sequence
p. 83-94
On some special matrix decompositions over fields and finite commutative rings
p. 95-101
Hamilton's instability index and applications to periodic waves
p. 102-110
50 years since publishing the Cook's Theorem
p. 111-122
From the turtle to the python: the education of teachers in informatics and IT and the curriculum changes
p. 123-132
Mathematics Education of Teachers – an Old and Still Open Question
p. 133-136
On the distinctness of some ternary Kloosterman sums
p. 139-143
Stability analysis of a model for a vector-borne disease with an asymptomatic class
p. 144-149
Linear stability of periodic waves of the coupled nonlinear wave equations
p. 150-155
On symmetric positive solutions of p-Laplacian differential equation with variable coefficients
p. 156-162
Lagrange's four square theorem with almost-prime numbers having a special form
p. 163-175
A limit theorem for the maximum of random variables with logarithmic distribution
p. 179-184
A new method for manual measurements of inhibition zones with the Bauer-Kirby disk susceptibility test
p. 185-190
A decision hierarchical model of cyber security risk assessment
p. 191-195
Some notes on the solutions of transportation problems
p. 196-200
Bridging the gap between school and competitive mathematics: an example
p. 203-208
Information security awareness level evaluation among Bulgarian public and local administration employees
p. 209-214
Fostering technology-enhanced learning and digital innovations in schools – key factors and challenges
p. 215-221
On the process of understanding in mathematics education
p. 222-229
Distance learning in 2020 – from the first line: the experience of an elite high school
p. 231-237
Developing communication competencies through university courses in mathematics
p. 238-244
Some aspects for the application of artificial intelligence in school education
p. 245-251
Using a heuristic approach in maths education in 6th - 7th grade
p. 252-260
The educational potential of crossword puzzles in mathematics education
p. 261-266
Mathematical literacy and literacy in mathematics
p. 267-270
Didactic technology for compiling a didactic system of problems
p. 271-283
An application of accumulative frame models in programming training
p. 284-289
Integration of virtual reality in educational process
p. 290-297
Using the Weyr form in the numerical determination of the Jordan canonical form of a matrix
p. 298-307
Overlap of the mathematical key competence with other competences
p. 308-313
Once again about the quality of education in the digital era: a tribute to Blagovest Sendov
p. 314-330
Computer modeling in support of mathematics in the initial stage
p. 331-336
Interactivity – the key to successful education
p. 337-341
Recent developments in modelling COVID-19 pandemic
p. 345-346
IMI-BAS continues to convey in Bulgaria the Scientix support for STEM teachers
p. 349-355
Computer and mathematical modelling in the national scientific programme “Information and communication technologies for a single digital market in science, education and security”
p. 356-372
Mathematics in an electronic environment with Geogebra Activity (M૯GA)
p. 373-380