Results 181 to 190 of about 6,012,202 (297)

Brouwer fixed point theorem

Fixed points are points, where a functions output and input match. Fixed point theorems state conditions for the existence of fixed points. These theorems are fundamental results in mathematical analysis, and they have significant and long reaching ...
Bergqvist, Eliel
core   +1 more source

Equivariant Isomorphism of Quantum Lens Spaces of Low Dimension. [PDF]

Commun Math Phys
Eilers S, Zegers SE.
europepmc   +1 more source

Coupled heat and mass transfer in reactive parallel‐plate flow: A perturbative Graetz model with modal symmetry and Arrhenius kinetics

The Canadian Journal of Chemical Engineering, EarlyView.
A perturbative Graetz model describes coupled heat and mass transfer in reactive Couette–Poiseuille flow between parallel plates. Viscous dissipation and heat of reaction produce a small temperature rise, which enhances Arrhenius reaction rates and modestly accelerates axial species conversion in the small‐Brinkman‐number regime.
Leonardo Damián Soria Rodríguez, Anthony Albert Harrup Gutiérrez   +1 more
wiley   +1 more source

Fixed Point Theorems in Computability Theory

We give a quick survey of the various fixed point theorems in computability theory, partial combinatory algebra, and the theory of numberings, as well as generalizations based on those. We also point out several open problems connected to these.
openaire   +4 more sources

Copula‐based joint modelling of emergency department visits with time‐varying dependence

Canadian Journal of Statistics, EarlyView.
Abstract Jointly modelling multiple correlated count time series is essential in health services research, where outcomes like emergency visits for mental health and substance use often evolve together. Ignoring these dependencies can obscure meaningful trends and limit the effectiveness of policy evaluation.
Guanjie Lyu, Cindy Feng, Lihui Liu
wiley   +1 more source

On a generalization of Cannon's conjecture for cubulated hyperbolic groups. [PDF]

Math Ann
Bregman C, Incerti-Medici M.
europepmc   +1 more source

Vine copula knockoffs for variable selection in gene expression studies

Canadian Journal of Statistics, EarlyView.
Abstract Identifying clinical and genetic markers is essential for stratifying cancer patients by survival outcomes and guiding personalized treatment strategies. However, gene expression studies often involve high‐dimensional predictors with mixed data types and complex dependence, which complicates reliable variable selection.
José Ulises Márquez Urbina, Alejandro Román Vásquez, Graciela González Farías, Gabriel Escarela   +3 more
wiley   +1 more source

Classification of Atmospheric Traveling Waves at Cloud Level. [PDF]

Arch Ration Mech Anal
Constantin A, Lin Z, Zhu H.
europepmc   +1 more source

Nonparametric maximum likelihood estimation of the survival function using current lifetime data

Canadian Journal of Statistics, EarlyView.
Abstract An issue when estimating the failure time survival function is how to set up a prevalent cohort study infrastructure to follow subjects after enrollment. This problem can be circumvented through the well‐known Grenander density estimator using current lifetime observations only.
James H. McVittie, Masoud Asgharian
wiley   +1 more source

Bornological stabilization families and oscillation dynamics of closed-set sequences. [PDF]

PLoS One
Lin ZP, Gürdal M, Kişi Ö.
europepmc   +1 more source