I have basic training in Fourier and Harmonic analysis. And wanting to enter and work in area of number theory(and which is of some interest for current researcher) which is close to analysis. 



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> Can you suggest some fundamental papers(or books); so after reading these I can have, hopefully(probably), I will have some thing to work on(I mean, chance of discovering something new)?
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number theory which is close to analysis
You could try the short book by Hugh Montgomery, which focuses closely on the interactions of harmonic analysis and number theory.


*Ten Lectures on the Interface between Analytic Number Theory and Harmonic Analysis*
by Hugh L. Montgomery 
Series: CBMS Regional Conference Series in Mathematics (Book 84)
Paperback: 220 pages
Publisher: American Mathematical Society (October 11, 1994)
ISBN-10: 0821807374


