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Related papers: $q$-rious unimodality

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We show that the $q$-derangement numbers satisfy a ratio monotone property, which is analogous to the log-concavity and is stronger than the spiral property and the unimodality.

Combinatorics · Mathematics 2007-10-04 William Y. C. Chen , Ernest X. W. Xia

We survey recent developments on the Restriction conjecture.

Classical Analysis and ODEs · Mathematics 2007-05-23 Terence Tao

In 2009, de Fernex and Hacon proposed a generalization of the notion of the singularities to normal varieties that are not Q-Gorenstein. Based on their work, we generalize Kleiman's transversality theorem to subvarieties with log terminal…

Algebraic Geometry · Mathematics 2011-11-21 Chih-Chi Chou

In this paper, we define and discuss $\mathcal{R}(p,q)$- deformations of basic univariate discrete distributions of the probability theory. We mainly focus on binomial, Euler, P\'olya and inverse P\'olya distributions. We discuss relevant…

Probability · Mathematics 2019-10-29 Mahouton Norbert Hounkonnou , Fridolin Melong

We give a generalization of Collatz conjecture or 3n+1 problem on 2-adic completion of Q. A isometric of $Q_2$ provides information on the average behavior of the firsts terms of the sequence according to the class of $u_0$ modulo $2^m$. A…

Number Theory · Mathematics 2016-07-11 Vincent Fleckinger , Ibrahim Abdoulkarim

We ask questions generalizing uniform versions of conjectures of Mordell and Lang and combining them with the Morton--Silverman conjecture on preperiodic points. We prove a few results relating different versions of such questions.

Number Theory · Mathematics 2012-07-04 Bjorn Poonen

The theory of total positivity for reductive groups is here extended to the case of symmetric spaces.

Representation Theory · Mathematics 2021-09-29 G. Lusztig

We prove that graded K-theory is universal among oriented Borel-Moore homology theories with a multiplicative periodic formal group law.

Algebraic Geometry · Mathematics 2013-01-17 José Luis González , Kalle Karu

Three recent arguments seek to show that the universal applicability of unitary quantum theory is inconsistent with the assumption that a well-conducted measurement always has a definite physical outcome. In this paper I restate and analyze…

Quantum Physics · Physics 2018-10-17 Richard A. Healey

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

Bergeron--Ceballos--K\"ustner introduced the $q$-Fibonomial coefficients \( \qfibonom{m+n}{n}\), gave a combinatorial interpretation of the $q$-Fibonomial coefficients via a weighted path-domino tiling model, and conjectured that these…

Combinatorics · Mathematics 2026-05-14 Brendan B. Connelly , Ezekiel Ito , Thomas C. Martinez , Olha Shevchenko , Kacey Yang

We prove two positivity conjectures proposed by Guo for alternating sums and factorial ratios built from Gaussian coefficients. The first result proves the positivity of the odd $q$-super Catalan numbers \[…

Combinatorics · Mathematics 2026-05-28 Ji-Cai Liu

Contrary to common belief, there are perspectives for generalizing the notion of positive and negative frequency in minisuperspace quantum cosmology, even when the wave equation does not admit symmetries. We outline a strategy in doing so…

General Relativity and Quantum Cosmology · Physics 2009-10-28 Franz Embacher

It is shown that, if nu >= 1/2 then the generalized Marcum Q function Q_nu(a, b) is log-concave in 0<=b <infty. This proves a conjecture of Sun, Baricz and Zhou (2010). We also point out relevant results in the statistics literature.

Statistics Theory · Mathematics 2011-05-31 Yaming Yu

This paper presents the logic QRC$_1$, which is a strictly positive fragment of quantified modal logic. The intended reading of the diamond modality is that of consistency of a formal theory. Predicate symbols are interpreted as…

Logic · Mathematics 2020-10-15 Ana de Almeida Borges , Joost J. Joosten

We present a Coq formalization of the Quantified Reflection Calculus with one modality, or $\mathsf{QRC}_1$. This is a decidable, strictly positive, and quantified modal logic previously studied for its applications in proof theory. The…

Logic in Computer Science · Computer Science 2023-12-20 Ana de Almeida Borges

Given $0<q<1,$ every absolutely continuous distribution can be described in two different ways: in terms of a probability density function and also in terms of a $q$-density. Correspondingly, it has a sequence of moments and a sequence of…

Probability · Mathematics 2019-07-11 Sofiya Ostrovska , Mehmet Turan

Several authors have introduced various type of coherent-like rings and proved analogous results on these rings. It appears that all these relative coherent rings and all the used techniques can be unified. In [2], several coherent-like…

Commutative Algebra · Mathematics 2020-09-01 Mostafa Amini , Arij Benkhadra , Bennis , Mohammed Hajoui

In this article, we present a short, non-exhaustive study of an important and well-known property of combinatorial sequences - unimodality. We shall have a look at a sample of classical results on unimodality and related properties, and…

History and Overview · Mathematics 2020-10-14 Arjun Pawar

In this note we prove a more general (and topological) version of Gr\"unbaum's conjecture about affine invariant points. As an application of our result we show that, if we consider the action of the group of similarities, Gr\"unbaum's…

Metric Geometry · Mathematics 2020-06-26 Natalia Jonard-Perez