00487nam a2200169 a 450000500170000002000180001708200130003510000170004824501210006525000150018626000520020130000280025360000080028163000160028985600060030585600060031120251203114854.0  a9781470438388  a510bARN  aArnold, V.I.  aMathematical understanding of naturebessays on amazing physical phenomena and their understanding by mathematicians  aIndian ed.  aProvidencebAmerican Mathematical Societyc2017  axiv, 167 p.c22 cm.bPB  bc_  aMathematics  f_  a_