SearcharxivSearch

arXiv · 2503.05614

The Derived Adelic Cohomology Conjecture for Elliptic Curves

Abstract

We propose a novel derived cohomological framework for the Birch and Swinnerton-Dyer (BSD) conjecture for elliptic curves. In our approach, local arithmetic data are encoded in derived sheaves which, when glued via a mapping cone construction, yield an adelic complex. A natural Postnikov filtration on this complex gives rise to a spectral sequence whose first nonzero differential detects the analytic and algebraic rank of the curve. Moreover, the determinant of this differential equals the combination of classical invariants appearing in the BSD formula. We present rigorous constructions of the derived sheaves involved and establish their key properties, including explicit connections to L-functions through cohomological interpretations. Extensive numerical evidence across curves of various ranks, including those with non-trivial Tate-Shafarevich groups, supports these structural predictions. Our framework unifies several existing approaches to the BSD conjecture, providing a cohomological interpretation that explains both the rank equality and the precise formula where previous methods addressed only partial aspects of the conjecture.

Explore related subjects

Keep this discovery

Explore connections, maps & timelines

BibTeXRIS

Dane Wachs. 2025-03-07. The Derived Adelic Cohomology Conjecture for Elliptic Curves. https://arxiv.org/abs/2503.05614

Cite the original work for its findings. Save a collection to share your selection of sources.

KEEP EXPLORING

Related papers

Average Chord Lengths in a Triangle

Let $P$ be a point inside a triangle $T$. We consider the average length of the chords of $T$ through $P$, where the direction of the chord is chosen uniformly. An elementary formula is obtained in terms of the distances from $P$ to the sides and vertices of the triangle. Several classical triangle centers give especially simple specializations. For example, if $I$ is the incenter, then \[ M_T(I)=\frac{2r}{\pi} \log\left(\cot\frac A4\cot\frac B4\cot\frac C4\right). \] Our main result is the sharp inequality \[ M_T(P)\le \frac{p}{\pi\sqrt3}\log(2+\sqrt3), \] valid simultaneously for every triangle of perimeter $p$ and every interior point $P$. Thus, among all such pairs $(T,P)$, the largest possible average chord length occurs only when $T$ is equilateral and $P$ is its center. The proof is an elementary symmetrization argument. We close with brief remarks relating the problem to the radial center of a convex body, the electrostatic potential center of a triangle, and dual quermassintegrals.

math.GM

A Proof of Liu's Conjecture on the Fundamental Triangle Inequality

Let $a,b,c$ be the side lengths of a triangle, and let $R$ and $r$ denote its circumradius and inradius, respectively. We prove a conjecture of Liu stating that \[\sum_{\mathrm{cyc}} \left(\frac{a(b+c-a)}{bc}\right)^k \geq 2+\left(\frac{2r}{R}\right)^k,~~k>1, \] with the reverse inequality for $0<k<1$. The proof reduces the problem to three positive variables with fixed sum and product. We also determine the equality cases.

math.GM