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# Discrete Recurrence

Posted 9 years ago
 I'm trying to resolve Proposition 1 from the article below(page 4). http://arxiv.org/pdf/1506.04656.pdf Thank you.
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Posted 9 years ago
 Hi,what did you try ???There is a function RSolve which is exactly made for this kind of task:Regards -- Henrik
Posted 9 years ago
 Hi Raluca,well, this is not Maple ...You need to define an equation, i.e. it should read after RSolve x[t+1] == a[t] ... In a notebook both operators (= and ==) look very similar.Regarding your question on multivariate recurrence: I may be completely wrong, but to me this seems equivalent to your first problem. In the solution there is nowhere stated that every element needs to be a scalar. Regards -- Henrik
Posted 9 years ago
 I tried in Maple because I have never used Mathematica.I see it is better for this kind of problems.You don't know how much you helped me. This recurrence stressed me a lot last couple of days.Do you think I could resolve a multivariate recurrence like Lemma1 (page 5) from the same article?Thank you so much. Best wishes and regards, Raluca
Posted 9 years ago
 I got this Could you, please, tell me why?
Posted 9 years ago
 Thank you Henrick. You lighted me up again. Regarding the multivariate recurrence it can't be the same. For example, for the bivariate recurrence t is (t1,t2). In the same article (page 11), is a bivariate example. Do you think that it could be implemented in Mathematica, eventually in a recurrence plot?