00595nam a2200121   4500020002400000082001700024100003300041245006400074260004500138300003400183500004700217650020900264  a9788173198298 (pbk)  a515.353bSHA  aSharma, J. N. aSingh, Kehar  aPartial differential equations for engineers and scientists  aNew DelhibNarosa Publishing Housec2019  axiv, 339 p.b: ill.c; 24 cm.  aIncludes bibliography, appendix and index.  a Partial differential equations aMathematicsvDifferential equations partialvDifferential equationsvFourier seriesvDifferential equations, EllipticvDifferential equations, HyperbolicvFunctionsvFBSH