The International Journal of Mathematical Theory and Applications encourages authors to make the data and supporting materials underlying their research available whenever possible. Authors should provide sufficient information to support transparency and reproducibility of their findings. Where research data, mathematical models, computational codes, or other supporting materials are available, authors are encouraged to indicate how they can be accessed. If the data cannot be shared because of privacy, confidentiality, legal, or other restrictions, the authors should clearly state the reason. Where data availability is not applicable to a particular study, an appropriate statement should be provided.