"ACTA MATH SIN" is an abbreviation for the journal "Acta Mathematica Sinica". It is a renowned mathematical journal that covers a wide range of mathematical disciplines. Synonyms for "ACTA MATH SIN" can include "Acta Math Sin", "AMS", and "Mathematical Sinica". These synonyms are commonly used in academic and professional circles to refer to this prestigious journal. With its reputation for publishing high-quality research in various mathematical fields, "ACTA MATH SIN" continues to be a valuable resource for mathematicians and researchers worldwide.