- About one inequality from APMO, 2004.pdf
- About quadratically connected sequences.pdf
- Dense numerical sets, Kronecker's Theorem and else...(c).pdf
- Math Olympiads Training- Problems and solutions.pdf
- Periodic sets and periodic functions..pdf
- Power-sum problem, Bernoulli Numbers and Bernoulli Polynomials..pdf
- Value of polynomial generated by sequence (c).pdf
- Variations on theme of Nested Radicals..pdf
- Variations on theme of Walker's Inequality.pdf