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We sharpen and generalize the dimension growth bounds for the number of points of bounded height lying on an irreducible algebraic variety of degree $d$, over any global field. In particular, we focus on the affine hypersurface situation by…

Number Theory · Mathematics 2025-12-05 Raf Cluckers , Pierre Dèbes , Yotam I. Hendel , Kien Huu Nguyen , Floris Vermeulen

We consider positivity conditions both for real-valued functions of several complex variables and for Hermitian forms. We prove a stabilization theorem relating these two notions, and give some applications to proper mappings between balls…

Complex Variables · Mathematics 2008-02-03 David W. Catlin , John P. D'Angelo

We prove an effective form of Wilkie's conjecture in the structure generated by restricted sub-Pfaffian functions: the number of rational points of height $H$ lying in the transcendental part of such a set grows no faster than some power of…

Logic · Mathematics 2022-02-14 Gal Binyamini , Dmitry Novikov , Benny Zack

The shiftable Heffter arrays are naturally generalized to the shiftable Heffter spaces. We present a recursive construction which starting from a single shiftable Heffter space leads to infinitely many other shiftable Heffter spaces of the…

Combinatorics · Mathematics 2024-12-23 Marco Buratti , Anita Pasotti

In this paper we adopt a geometric point of view regarding a famous conjecture due to Littlewood in diophantine approximation of real numbers. Following the spirit of the geometric theory of continued fractions, we give a sufficient…

Number Theory · Mathematics 2020-05-14 Youssef Lazar

We prove a modified version of Turbiner's conjecture in three dimensions and we give a counter-example to the original conjecture. The Lie algebraic Schr\"odinger operators corresponding to flat metrics of a certain restricted type are…

Differential Geometry · Mathematics 2007-05-23 Mélisande Fortin Boisvert

Simply-connected manifolds of positive sectional curvature $M$ are speculated to have a rigid topological structure. In particular, they are conjectured to be rationally elliptic, i.e., all but finitely many homotopy groups are conjectured…

Differential Geometry · Mathematics 2015-09-30 Manuel Amann , Lee Kennard

Here we prove some special cases of the following conjecture: that the sum of the Betti numbers of a 1-connected elliptic space is greater than the total rank of its homotopy groups. Our main tool is Sullivan's minimal model.

Algebraic Topology · Mathematics 2008-03-28 Mohamed Rachid Hilali , My Ismail Mamouni

In this paper we present a conjecture on the construction of generalised elliptic units above number fields with exactly one complex place. These elliptic units obtained as values of multiple elliptic Gamma functions. These form a…

Number Theory · Mathematics 2026-01-21 Pierre L. L. Morain

In this paper we prove the validity of Gibbons' conjecture for the quasilinear elliptic equation $ -\Delta_p u = f(u) $ on $\mathbb{R}^N.$ The result holds true for $(2N+2)/(N+2) < p < 2$ and for a very general class of nonlinearity $f$.

Analysis of PDEs · Mathematics 2020-02-28 Francesco Esposito , Alberto Farina , Luigi Montoro , Berardino Sciunzi

A main purpose of this paper is to prove that the class of finite dimensional algebras which verify Han's conjecture is closed under split bounded extensions.

K-Theory and Homology · Mathematics 2021-03-01 Claude Cibils , Marcelo Lanzilotta , Eduardo N. Marcos , Andrea Solotar

In this paper, we propose the study of a conjecture whose affirmative solution would provide an example of a non-convex Chebyshev set in an infinite-dimensional real Hilbert space.

Functional Analysis · Mathematics 2011-02-17 Biagio Ricceri

The Hopf conjecture states that an even-dimensional, positively curved Riemannian manifold has positive Euler characteristic. We prove this conjecture under the additional assumption that a torus acts by isometries and has dimension bounded…

Differential Geometry · Mathematics 2016-01-20 Lee Kennard

The finitistic dimension conjecture asserts that any finite-dimensional algebra over a field should have finite finitistic dimension. Recently, this conjecture is reduced to studying finitistic dimensions for extensions of algebras. In this…

Representation Theory · Mathematics 2018-05-01 Chengxi Wang , Changchang Xi

We prove the Invariant Subspace Conjecture for separable Hilbert spaces.

Functional Analysis · Mathematics 2023-07-24 Charles W. Neville

We give a reformulation of the Lehmer conjecture about algebraic integers in terms of a simple counting problem modulo p.

Number Theory · Mathematics 2019-05-21 Emmanuel Breuillard , Péter P. Varjú

The goal of this paper is to ameliorate the sufficients conditions, already established by the first author so that the sum of the numbers of Betti, of 1-connected rational finite CW-complex, is higher than the dimension of his $\mathbb…

Algebraic Topology · Mathematics 2007-12-26 Mohamed Rachid Hilali , My Ismail Mamouni

In this article, we pursue the study begun in \cite{Lup02} on the cohomology of rationally elliptic coformal spaces. Consequently, we complete, for such spaces, the proof of Lupton's conjecture and deduce Hilali's.

Algebraic Topology · Mathematics 2025-01-23 Youssef Rami

Hadwiger's covering conjecture is that every $n$-dimensional convex body can be covered by at most $2^n$ of its smaller positive homothetic copies, with $2^n$ copies required only for affine images of $n$-cube. Convex hull of a ball and an…

Metric Geometry · Mathematics 2025-12-16 Andrii Arman , Jaskaran Singh Kaire , Andriy Prymak

We prove that Alexandrov's conjecture relating the area and diameter of a convex surface holds for the surface of a general ellipsoid. This is a direct consequence of a more general result which estimates the deviation from the optimal…

Differential Geometry · Mathematics 2015-12-04 Pedro Freitas , David Krejcirik