00827nam a22001697a 4500040003600000082001300036100002400049245010600073260003600179300004200215500014800257500004100405500004700446502005900493546001200552650009300564  cRiphah International University  a510bALI  aAlina Sahar (21114)  aCylindrical and spherical ion-acoustic freak waves in adiabatically hot electron-positron-ion plasmas  aIslamabadb(Unpublished)	c2022  axi, 29 p.c; 30 cm.e+CDb: ill. Col.  aSubmitted in partial fulfillment of the requirements for the degree of Master of Philosophy in Mathematics to the Department of Basic Sciences.  aIncludes bibliographical references.  aThesis supervisor: Dr. Muhammad Yaqub Khan  aThesis (M.Phil)--Riphah International University, 2022  aEnglish  aMathematicsvNon-Linear wavesvPerturbative methodvFreak WavesvLinear wavesvDBSvFEAS