Advances in Mathematics: Scientific Journal
Union of Researchers of Macedonia, R. North Macedonia
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2026, Vol. 15, No. 4
DOI: https://doi.org/10.37418/amsj.15.4
X.Q. Jin, S.G. Li, X.W. Zhang, and J. Yang
A NECESSARY AND SUFFICIENT CONDITION FOR A RIVER METRIC INEQUALITY ON $R^2$ OR $R^3$ TO HOLD
DOI: https://doi.org/10.37418/amsj.15.4.1