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Martin's Conjecture states that every definable function on the Turing degrees is either constant or increasing, and that every increasing function is an iterate of the Turing jump. This classification has already been corroborated for the…

Logic · Mathematics 2025-11-11 Antonio Nakid Cordero

Martin's Conjecture is a proposed classification of the definable functions on the Turing degrees. It is usually divided into two parts, the first of which classifies functions which are not above the identity and the second of which…

Logic · Mathematics 2024-04-08 Patrick Lutz , Benjamin Siskind

There is a fascinating interplay and overlap between recursion theory and descriptive set theory. A particularly beautiful source of such interaction has been Martin's conjecture on Turing invariant functions. This longstanding open problem…

Logic · Mathematics 2020-01-20 Andrew Marks , Theodore Slaman , John Steel

In the present note, we give a short proof of Brennan's conjecture in the special case of continuous semigroups of holomorphic functions. We apply classical techniques of complex analysis in conjunction with recent results on…

Complex Variables · Mathematics 2025-04-15 Alexandru Aleman , Athanasios Kouroupis

We study functions from reals to reals which are uniformly degree-invariant from Turing-equivalence to many-one equivalence, and compare them "on a cone." We prove that they are in one-to-one correspondence with the Wadge degrees, which can…

Logic · Mathematics 2016-08-18 Takayuki Kihara , Antonio Montalbán

We establish a connection between the ratios conjecture for the Riemann zeta-function and a conjecture concerning correlations of convolutions of M\"{o}bius and divisor functions. Specifically, we prove that the ratios conjecture and an…

Number Theory · Mathematics 2017-10-11 Brian Conrey , Jonathan P. Keating

We show that part I of uniform Martin's conjecture follows from a local phenomenon, namely that if a non-constant Turing invariant function goes from the Turing degree $\boldsymbol x$ to the Turing degree $\boldsymbol y$, then $\boldsymbol…

Logic · Mathematics 2019-07-26 Vittorio Bard

We give a complete proof of the generalized Khavinson conjecture which states that, for bounded harmonic functions on the unit ball of $\mathbb{R}^n$, the sharp constants in the estimates for their radial derivatives and for their gradients…

Analysis of PDEs · Mathematics 2019-09-04 Congwen Liu

We give a partial answer to an important open problem in descriptive set theory, the Decomposability Conjecture for Borel functions on an analytic subset of a Polish space to a separable metrizable space. Our techniques employ deep results…

Logic · Mathematics 2016-05-27 Vassilios Gregoriades , Takayuki Kihara , Keng Meng Ng

Artin's conjecture is established for all forms that can be realised as a diagonal form on an hyperplane.

Number Theory · Mathematics 2018-06-14 Jörg Brüdern , Olivier Robert

We consider the recursive estimation of a regression functional where the explanatory variables take values in some functional space. We prove the almost sure convergence of such estimates for dependent functional data. Also we derive the…

Statistics Theory · Mathematics 2013-04-19 Aboubacar Amiri , Baba Thiam

We consider the conjecture of Brutman and Pasow on a totality divided differences and prove the conjecture for continuous functions.

Classical Analysis and ODEs · Mathematics 2018-01-17 M. D. Takev

We develop the $L$-functions ratios conjecture with one shift in the numerator and denominator in certain ranges for the family of quadratic twist of modular $L$-functions using multiple Dirichlet series under the generalized Riemann…

Number Theory · Mathematics 2024-09-06 Peng Gao , Liangyi Zhao

We establish the exact overlaps conjecture for iterated functions systems on the real line with algebraic contractions and arbitrary translations.

Dynamical Systems · Mathematics 2020-01-15 Ariel Rapaport

In this paper, we prove Smale's mean value conjecture by making use of quasiconformal deformations and holomorphic motions.

Complex Variables · Mathematics 2017-04-04 Yuefei Wang

We confirm Martin's conjecture for a broad subclass of weakly quasi-o-minimal theories.

Logic · Mathematics 2026-03-09 Slavko Moconja , Predrag Tanović

In [8], the gradient conjecture of R. Thom was proven for gradient flows of analytic functions on Rn. This result means that the secant at a limit point converges, so that the flow cannot spiral forever. Once the trajectory becomes…

Differential Geometry · Mathematics 2025-11-19 Lorenz Schabrun

We study an analogue of the Mertens conjecture in the setting of global function fields. Building on the work of Cha, we show that most hyperelliptic curves do not satisfy the Mertens conjecture, but that if we modify the Mertens conjecture…

Number Theory · Mathematics 2015-02-25 Peter Humphries

It is be shown that the sequence of Bernstein polynomials for a function of several variables converges to this function uniformly along with every partial derivative of any order, provided that the latter derivative is well defined and…

Probability · Mathematics 2016-10-18 Alexander Veretennikov , Evguenia Veretennikova

The BMV conjecture states that for $n\times n$ Hermitian matrices $A$ and $B$ the function $f_{A,B}(t)=trace{\, } e^{tA+B}$ is exponentially convex. Recently the BMV conjecture was proved by Herbert Stahl. The proof of Herbert Stahl is…

Classical Analysis and ODEs · Mathematics 2016-06-23 Victor Katsnelson
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