00989nam a22002057a 4500952010200000999001700102040003600119082001300155100002400168245010600192260003600298300004200334500014800376500004100524500004700565502005900612546001200671650009300683942000700776  00104071aRIUbRIUd2022-07-26g0.00l0o510 ALIp68994r2022-07-26 00:00:00t1w2022-07-26yTH  c45304d45304  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 aCylindrical and spherical ion-acoustic freak waves in adiabatically hot electron-positron-ion plasmas  aIslamabadb(Unpublished)	c2022  axi, 29 p.c; 30 cm.e+CDb: ill.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  cTH