A paper of mine (relatively junior mathematician) was just accepted in a good journal, and I was considering adding a dedication to the memory of a mathematician in my area that passed away, and whose work I admire a lot. The topic of the paper is closely related to the work of said mathematician, however I have never met them personally, or communicated with them in any way. Would it be appropriate for me to add such dedication, or is this usually reserved to more established mathematicians, or mathematicians that knew each other well? Do journals have typically a problem with adding dedications after the referring process? I am guessing 'no', but I am asking anyway.