Results 171 to 180 of about 3,158,775 (365)
Edge‐Connectivity Between Edge‐Ends of Infinite Graphs
Journal of Graph Theory, EarlyView.ABSTRACT In infinite graph theory, the notion of ends, first introduced by Freudenthal and Jung for locally finite graphs, plays an important role when generalizing statements from finite graphs to infinite ones. Nash‐Williams' Tree‐Packing Theorem and MacLane's Planarity Criteria are examples of results that allow a topological approach, in which ends
Leandro Aurichi, Lucas Real
wiley +1 more source
Covers of Elliptic Curves with Unique, Totally Ramified Branch Points [PDF]
Mathematische Nachrichten 286 (2013) 1530-1536, 2012 A well-known and difficult problem in computational number theory and algebraic geometry is to write down equations for branched covers of algebraic curves with specified monodromy type. In this article, we present a technique for computing such covers in the case of totally ramified covers of elliptic curves branched at one point.
arxiv
Diagnostic safety and quality optimization in sepsis study protocol
Journal of Hospital Medicine, EarlyView.Abstract Background Sepsis ranks among the “Big Three" conditions most prone to harmful diagnostic errors. Despite its high prevalence and severity, health systems lack effective and contextually tailored strategies to optimize diagnostic accuracy for sepsis.
Sachita Shrestha +7 more
wiley +1 more source
Infinitesimal deformations of double covers of smooth algebraic varieties [PDF]
, 2006 Sławomir Cynk, Duco van Straten
openalex +1 more source
Survive the economic downturn: Operating flexibility, productivity, and stock crash
Journal of Operations Management, EarlyView.Abstract Operating flexibility supports a firm's resilience strategy during challenging times by enabling them to promptly cut down operating costs associated with unproductive resources. We employ a real options model to formalize this insight. Our empirically grounding analytics motivate a firm‐level proxy for downscale operating flexibility (FLEX ...
Yang Li +3 more
wiley +1 more source
Controllability of discrete‐time signed multiagent networks
IET Control Theory &Applications, Volume 17, Issue 1, Page 98-108, January 2023., 2023 Abstract Most of the existing studies on controllability have only focused on networks with non‐negative weighted interactions/edges among agents. In fact, there are both positive and negative weighted interactions in a network, where positive/negative weight implies cooperative/antagonistic interaction.
Bo Liu +3 more
wiley +1 more source
A unified approach of catastrophic events [PDF]
Natural Hazards and Earth System Sciences, 2004 Although there is an accumulated charge of theoretical, computational, and numerical work, like catastrophe theory, bifurcation theory, stochastic and deterministic chaos theory, there is an important feeling that these matters do not completely cover ...
S. Nikolopoulos +3 more
doaj
Doubling coverings of algebraic hypersurfaces
, 2015 A doubling covering $\U$ of a complex $n$-dimensional manifold $Y$ consists of analytic functions $ _j:B_1\to Y$, each function being analytically extendable, as a mapping to $Y$, to a four times larger concentric ball $B_4$. Main result of this paper is an upper bound on the minimal number $ ({\U})$ of charts in doubling coverings of a manifold $Y$,
Friedland, Omer, Yomdin, Yosef
openaire +2 more sources
Mathematische Nachrichten, EarlyView.Abstract Let h$h$ be a fixed non‐zero integer. For every t∈R+$t\in \mathbb {R}_+$ and every prime p$p$, consider the angles between rays from an observer located at the point (−tJp2,0)$(-tJ_p^2,0)$ on the real axis toward the set of all integral solutions (x,y)$(x,y)$ of the equation y−1−x−1≡hmodp$y^{-1}-x^{-1}\equiv h \left(\mathrm{ mod\;}p\right)$ in
Jack Anderson +3 more
wiley +1 more source
Unit commitment with frequency‐arresting adequacy constraint: Modelling and pricing aspects
IET Generation, Transmission &Distribution, Volume 16, Issue 24, Page 4924-4935, December 2022., 2022 Abstract Frequency‐arresting (FA) adequacy has received an increasing attention in operation of power systems with intermittent, electronically connected wind and sfolar generation. Presence of high penetration of renewable energy leads to reduced amount of inertia in the power system and the need for more sustainable market design.
Ehsan Davari Nejad +2 more
wiley +1 more source