Does Erdos' Unresolved Conjecture Involve n-term Arithmetic Progressions?

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SUMMARY

Erdos' unresolved conjecture posits that if the sum of reciprocals of a set of integers diverges, then the set must contain arbitrarily long arithmetic progressions. This conjecture remains unproven, even for the case of 3-term arithmetic progressions. The discussion highlights the relationship between Erdos' conjecture and Szemeredi's theorem, which imposes a stronger condition on the integer subset. Additionally, it references Green and Tao's result, which demonstrates that the primes also contain arbitrarily long arithmetic progressions, supporting the conjecture's implications.

PREREQUISITES
  • Understanding of arithmetic progressions, specifically n-term arithmetic progressions.
  • Familiarity with Erdos' conjecture and its implications in number theory.
  • Knowledge of Szemeredi's theorem and its conditions on integer subsets.
  • Awareness of Green and Tao's results regarding primes and arithmetic progressions.
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  • Research the proof and implications of Szemeredi's theorem on arithmetic progressions.
  • Study the details of Green and Tao's result regarding primes and their arithmetic progressions.
  • Explore the historical context and significance of Erdos' conjecture in number theory.
  • Investigate current approaches and methodologies in proving or disproving Erdos' conjecture.
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Mathematicians, number theorists, and students interested in unresolved problems in mathematics, particularly those focusing on arithmetic progressions and their properties.

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MATHWORLD: "Erdos offered a prize for a proof of the proposition that 'If the sum of reciprocals of a set of integers diverges, then that set contains arbitrarily long arithmetic progressions.' This conjecture is still open (unsolved), even for 3-term arithmetic progressions. "

What's an n-term arithmetic progression?
 
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Arithmetic progression-consecutive terms differ by a constant amount. x,x+d,x+2*d is a 3 term arithmetic progression, x, x+d, ..., x+(n-1)*d is an n-term arithmetic progression.

Compare Erdos conjecture with Szemeredi's theorem on arithmetic progressions, which makes a stronger assumption about your subset of the integers. Also Green and Tao's result on primes containing arbitrarily long arithmetic progressions as a special case of Erdos conjecture (sum of the reciprocals of the primes diverges)
 

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