Geodesic
A~refinement of Heath-Brown's theorem on quadratic forms
Sbornik. Mathematics, Tome 214 (2023) no. 5, pp. 627-675

Voir la notice de l'article provenant de la source Math-Net.Ru

In his paper from 1996 on quadratic forms Heath-Brown developed a version of the circle method to count points in the intersection of an unbounded quadric with a lattice of small period, when each point is assigned a weight, and approximated this quantity by the integral of the weight function against a measure on the quadric. The weight function is assumed to be $C_0^\infty$-smooth and vanish near the singularity of the quadric. In our work we allow the weight function to be finitely smooth, not to vanish at the singularity and have an explicit decay at infinity. The paper uses only elementary number theory and is available to readers with no number-theoretic background. Bibliography: 15 titles.
Keywords: circle method, quadratic form, summation over quadric.
Mots-clés : quadric 
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S. G. Vlăduţ; A. V. Dymov; S. B. Kuksin; A. Maiocchi. A~refinement of Heath-Brown's theorem on quadratic forms. Sbornik. Mathematics, Tome 214 (2023) no. 5, pp. 627-675. http://geodesic.mathdoc.fr/item/SM_2023_214_5_a1/