Contributions to Mathematics (ISSN : 2709-3646)

Volume 3 (2021)

Research Articles

Stability of Solutions to Some Abstract Evolution Equations with Delay
Nguyen S. Hoang, Alexander G. Ramm
Pages: 1-10   |  DOI: 10.47443/cm.2021.0004

On the Sombor Index of Graphs
Tamás Réti, Tomislav Došlić, Akbar Ali
Pages: 11-18  |  DOI: 10.47443/cm.2021.0006

Properties of Spectrally Bounded Compact Elementary Operators
Willy Kangogo, Nyaare B. Okelo, Omolo Ongati
Pages: 19-28  |  DOI: 10.47443/cm.2021.0012

On Truncated and Full Classical Markov Moment Problems
Octav Olteanu
Pages: 29-36  |  DOI: 10.47443/cm.2021.0011

On a Diophantine Equation Related to the Difference of Two Pell Numbers
Abdullah Çağman, Kadirhan Polat
Pages: 37-42  |  DOI: 10.47443/cm.2021.0020

Extremal Trees for the Exponential Reduced Second Zagreb Index
Hechao Liu, Hanlin Chen, Jia-Bao Liu, Zikai Tang
Pages: 43–52  |  DOI: 10.47443/cm.2021.0017

Dirac Quantization with Constraints Within Intrinsic Geometry
Paul Bracken
Pages: 53–58  |  DOI: 10.47443/cm.2021.0023

Some Results on the Sombor Indices of Graphs
Igor Milovanović, Emina Milovanović, Akbar Ali, Marjan Matejić
Pages: 59–67  |  DOI: 10.47443/cm.2021.0024

Ideals in Quasi-Ordered Residuated System
Daniel A. Romano
Pages: 68-76  |  DOI: 10.47443/cm.2021.0025

Review Article

Basic Tools and Continuity-Like Properties in Relator Spaces
Michael Th. Rassias, Árpád Száz
Pages: 77-106  |  DOI: 10.47443/cm.2021.0016

Correction Notices

Corrigendum to “Theory of hyper-singular integrals and its application to the Navier-Stokes problem, Contrib. Math. 2 (2020) 47–54”
Alexander G. Ramm
DOI: 10.47443/cm.2021.n1

Corrigendum to “Combinations of some spectral invariants and Hamiltonian properties of graphs, Contrib. Math. 1 (2020) 54–56”
Rao Li
DOI: 10.47443/cm.2021.n2