@janhardo  i will try do another post which maybe related to this one

@janhardo  my openion is just this remain the trail function is wrong, i have to look for another way for finding i have to try finding series, Dr.David did a great job about finding this parameter but didn't give any outcome so there is must be another way  

@janhardo i need find the a[12] step by step not copy past

@janhardo  i did in a few paper by the same steps but in here this problem come up  after this 

p2a := eval(pde, eqv2);
indets(p2a);
 i can't find a[12] by algsub 

@janhardo  but when we do substitution i don't know why we have 19 expresion of exponential must  be just three of them i don't know how make algebra substitution and just find a[12] parameter

@dharr dear dctor can you use distribute maybe work? becuase in last time i remember you used ditribute thus exp() and then find a[12] please try ditribute them and give me feedback  like this

@dharr If I were your neighbor, I would sit beside you until I absorbed all your knowledge, Master. I will make this to question in case someone have information about how hundle this issue, this is new for me, that I don't think anyone else could handle , but I will try. Your power remains strong, and I hope it grows even greater. You deserve even more power.

@dharr in here i looking for equations, for finding a[12] the founded one is  the other equation i am looking for the a[12] after removing each indets and using algsub then when i get equation i want find a[12] , but in indets in equation p2a the unknown exp is too much and undetectable really the  more than 15 of them and each one of them have a small different how make them the number of them be decrease or something like that  you can  do some magic 

@dharr  i have a small question dctor in here there is too much number of indets what i should do label all of them?

Dr.D-pde.mw

@dharr i have to solve a lot of them and reach a lot of problem for solving equation which no one solved before becuase of that i  have try all kind of them, by your method i can hundle all but  i have to figure out use that series for findding all is just for more modified work, there is any way for finding that series and replacing to get our trail function just this step remain ,ofcurse i will use yours is more easier and more simple ,is just for my knowledge if can find series of trail 

@mmcdara your numerical work is so valuable, i don't know the mean of this dot in figure but i thing if all of them are in one line is mean is totally true but the dot place is solution and theyseperate it mean we have singularity and is not continuos , i am agree in a lot place is singular solution the lump in some rare place is not singulare i must to find thus place which my function don't give me singulare plot i have this issue in plotting such function is big problem, also give me persmisin to tell you you are wrong about saying is not a solution my source of of paper a lot of them did the same i can't check it becuase the equation is to long and not run in my pc , but for the first one when i did transfor is satisfy and for second one when i did the pc not give me answer but keep runing for finding solution , check this you will figure out it must be true this is for lump 1 and 2  the graph i plot it will be change and i am have to looking for non singular plot by using paper i give the same parameter as he did but is lump but is singular so i am looking for nonsigular , check my file in below please

check this please 

1-2-p.mw

@mmcdara  i need check eqt3 and eq33 in pde they have to  be check  in pdetest

@dharr  i don't have idea why they do that but the figure is emazing when they did that but i don't know the pattern of variable yet

@acer i try to do like you but i ma fail i think each time i am stuck like that i should post question here i think i will delete this and repost a good one with more option can i do that don't be mad at me please but i don't want dublicate question i  want getting some shape like kink wave and dark bright mixed dark bright can i told explore give me that parameter for searching such graph for the function? i want do that by iteration anythink like that is possible?

@mmcdara  i will repost this after  i mix all part of equation and also the that paper i take it from i have to work on it thank you