Results 21 to 30 of about 10,784,145 (367)

Nonlinear inviscid damping near monotonic shear flows [PDF]

open access: yesActa Mathematica, 2020
We prove nonlinear asymptotic stability of a large class of monotonic shear flows among solutions of the 2D Euler equations in the channel $\mathbb{T}\times[0,1]$. More precisely, we consider shear flows $(b(y),0)$ given by a function $b$ which is Gevrey
A. Ionescu, H. Jia
semanticscholar   +1 more source

Quantum monotone metrics induced from trace non-increasing maps and additive noise [PDF]

open access: yesJournal of Mathematical Physics 61, 052202 (2020), 2020
Quantum monotone metric was introduced by Petz,and it was proved that quantum monotone metrics on the set of quantum states with trace one were characterized by operator monotone functions. Later, these were extended to monotone metrics on the set of positive operators whose traces are not always one based on completely positive, trace preserving (CPTP)
arxiv   +1 more source

Completely Monotonic Gamma Ratio and Infinitely Divisible H-Function of Fox [PDF]

open access: yes, 2015
We investigate conditions for logarithmic complete monotonicity of a quotient of two products of gamma functions, where the argument of each gamma function has a different scaling factor.
D. Karp, E. Prilepkina
semanticscholar   +1 more source

Complete monotonicity involving some ratios of gamma functions

open access: yesJournal of Inequalities and Applications, 2017
In this paper, by using the properties of an auxiliary function, we mainly present the necessary and sufficient conditions for various ratios constructed by gamma functions to be respectively completely and logarithmically completely monotonic.
Zhen-Hang Yang, Shen-Zhou Zheng
doaj   +1 more source

Orthosymmetrical monotone functions [PDF]

open access: yesBulletin of the Belgian Mathematical Society - Simon Stevin, 2007
A straightforward generalization of the classical inverse of a real function based on reflections leads to several insuperable difficulties. We introduce a new type of inverse w.r.t. monotone bijections $\phi$ that is determined by the direction of the base vectors of the real Euclidean plane.
Maes, K. C., De Baets, B.
openaire   +2 more sources

On the monotonicity of Hilbert functions [PDF]

open access: yesRendiconti del Seminario Matematico della Università di Padova, 2018
In this paper we show that a large class of one-dimensional Cohen–Macaulay local rings (\mathcal A,\mathfrak m) has the property that if M is a maximal Cohen–Macaulay A -module ...
openaire   +3 more sources

A completely monotonic function involving the tri- and tetra-gamma functions [PDF]

open access: yes, 2010
The di-gamma function ψ(x) is defined on (0,∞) by $\psi (x) = \frac{{\Gamma '(x)}} {{\Gamma (x)}} $ and ψ(i)(x) for i ∈ ℕ denote the polygamma functions, where Γ(x) is the classical Euler’s gamma function. In this paper we prove that a function involving
Bai-Ni Guo (郭白妮)   +2 more
semanticscholar   +1 more source

On monotonic bijections on subgroups of R

open access: yesApplied General Topology, 2016
We show that for any continuous monotonic  bijection $f$ on a $\sigma$-compact subgroup  $G\subset \mathbb R$ there exists a binary operation $+_f$ such that $\langle G, +_f\rangle$  is a topological group topologically isomorphic to $\langle G, +\rangle$
Raushan Buzyakova
doaj   +1 more source

A Note on Superspirals of Confluent Type

open access: yesMathematics, 2020
Superspirals include a very broad family of monotonic curvature curves, whose radius of curvature is defined by a completely monotonic Gauss hypergeometric function.
Jun-ichi Inoguchi   +2 more
doaj   +1 more source

On the monotonicity of the broadcast function

open access: yesDiscrete Mathematics, 2003
AbstractThe broadcast function, B(n), is the minimum number of edges in any graph on n vertices such that each vertex can broadcast in time ⌈logn⌉. It is a long-standing conjecture that B(n) is non-decreasing for n in the range 2m−1+1⩽n⩽2m. We show that the conjecture holds for n in the range 2m−1+1⩽n⩽2m−1+2m−3.
Hovhannes A. Harutyunyan   +1 more
openaire   +2 more sources

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