What is the Power Spectrum of a Markov Chain?

seang
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I'm reading the wikipedia article on them and I can't really get an understanding of what they are.

I'm writing a paper for psychology, and I keep coming across articles that say 'learning can be modeled with markov chains'

what does that mean?
 
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sequence of state probability matrices...mathworld.com is your friend.
 
A Markov chain is a sequence of random variables where the distribution of a given state depends on the immediately preceding state, but not on what happened before then.
 
hi there
I'm trying to find the power spectrum of a markov chain which is the Fourier transform of it's autocorrelation. I'm having trouble with this if anyone can help me out I would appreciate it.
thanks
 

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