On the parity of the number of lattice points in certain tetrahedra.
We investigate and refine a device which we introduced in [3] for the study of continued fractions. This allows us to more easily compute the period lengths of certain continued fractions and it can be used to suggest some aspects of the cycle structure (see [1]) within the period of certain continued fractions related to underlying real quadratic fields.
We apply a method of Euler to algebraic extensions of sets of numbers with compound additive inverse which can be seen as quotient rings of R[x]. This allows us to evaluate a generalization of Riemann’s zeta function in terms of the period of a function which generalizes the function sin z. It follows that the functions generalizing the trigonometric functions on these sets of numbers are not periodic.
In this paper we consider the asymptotic formula for the number of the solutions of the equation where is an odd integer and the unknowns are prime numbers of the form . We use the two-dimensional van der Corput’s method to prove it under less restrictive conditions than before. In the most interesting case our theorem implies that every sufficiently large odd integer may be written as the sum of three Piatetski-Shapiro primes of type for < < .