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On the remainder in the Weyl formula for the Euclidean disk

Yves Colin de Verdière (2010/2011)

Séminaire de théorie spectrale et géométrie

We prove a 2-terms Weyl formula for the counting function N ( μ ) of the spectrum of the Laplace operator in the Euclidean disk with a sharp remainder estimate O μ 2 / 3 .

On the sphere problem.

Fernando Chamizo, Henryk Iwaniec (1995)

Revista Matemática Iberoamericana

One of the oldest problems in analytic number theory consists of counting points with integer coordinates in the d-dimensional ball. It is very easy to find a main term for the counting function, but the size of the error term is difficult to estimate (...).

Polar lattices from the point of view of nuclear spaces.

Wojciech Banaszczyk (1989)

Revista Matemática de la Universidad Complutense de Madrid

The aim of this survey article is to show certain questions concerning nuclear spaces and linear operators in normed spaces lead to questions from geometry of numbers.

Primitive lattice points inside an ellipse

Werner Georg Nowak (2005)

Czechoslovak Mathematical Journal

Let Q ( u , v ) be a positive definite binary quadratic form with arbitrary real coefficients. For large real x , one may ask for the number B ( x ) of primitive lattice points (integer points ( m , n ) with gcd ( M , n ) = 1 ) in the ellipse disc Q ( u , v ) x , in particular, for the remainder term R ( x ) in the asymptotics for B ( x ) . While upper bounds for R ( x ) depend on zero-free regions of the zeta-function, and thus, in most published results, on the Riemann Hypothesis, the present paper deals with a lower estimate. It is proved that the absolute value or...

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