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math.NT2006
Approximating reals by rationals of the form a/b^2
Oleg Karpenkov
In this note we formulate some questions in the study of approximations of reals by rationals of the form a/b^2 arising in theory of Shr"odinger equations. We hope to attract atten…
math.NT2006
Three examples of three-dimensional continued fractions in the sense of Klein
Oleg Karpenkov
The problem of investigation of the simplest n-dimensional continued fraction in the sense of Klein for n>2 was posed by V.Arnold. The answer for the case of n=2 can be found in th…