Results 31 to 40 of about 120,588 (269)
Beyond the average: Detecting global singular nodes from local features in complex networks [PDF]
EPL (Europhysics Letters), 2009 Deviations from the average can provide valuable insights about the organization of natural systems. The present article extends this important principle to the systematic identification and analysis of singular motifs in complex networks. Six measurements quantifying different and complementary features of the connectivity around each node of a ...
Costa LD +3 more
openaire +3 more sources
Links of complex analytic singularities [PDF]
, 2013 This is a part survey part research paper studying the local topology of complex analytic spaces. We review and strengthen the results of Kapovich--Koll\'ar "Fundamental groups of links of isolated singularities" (1109.4047) and incorporate the paper ...
Kollár, János
core +1 more source
Perfect graphs and complex surface singularities with perfect local fundamental group
Tohoku Mathematical Journal, 1989 An isolated singularity x of a complex surface (X,\({\mathcal O}_ x)\) is \textit{perfect}, or \textit{homological trivial}, if the local fundamental group \(\pi_ 1(\partial U_ x)\) is a perfect group, where \(U_ x\) is a contractible neighborhood of x in X.
Brenton, Lawrence, Drucker, Daniel
openaire +2 more sources
, 2008 Let f be a definable function, enough differentiable. Under the condition of having strongly isolated singularities at infinity at a regular value c we give a sufficient condition expressed in terms of the total absolute curvature function to ensure the ...
A. Nemethi +18 more
core +1 more source
Comptes Rendus. MathématiqueWe define a Hodge-theoretical refinement of the Lyubeznik numbers for local rings of complex algebraic varieties. We prove that these numbers are independent of the choices made in their definition and that, for the local ring of an isolated singularity,
García López, Ricardo, Sabbah, Claude
doaj +1 more source
Ganglionated plexi stimulation induces pulmonary vein triggers and promotes atrial arrhythmogenecity: In silico modeling study. [PDF]
PLoS ONE, 2017 BACKGROUND:The role of the autonomic nervous system (ANS) on atrial fibrillation (AF) is difficult to demonstrate in the intact human left atrium (LA) due to technical limitations of the current electrophysiological mapping technique.
Minki Hwang +8 more
doaj +1 more source
Quasi-ordinary power series and their zeta functions [PDF]
, 2003 The main objective of this paper is to prove the monodromy conjecture for the local Igusa zeta function of a quasi-ordinary polynomial of arbitrary dimension defined over a number field.
Bartolo, E. Artal +3 more
core +4 more sources
On Complex Singularity Analysis for Some Linear Partial Differential Equations in
Abstract and Applied Analysis, 2013 We investigate the existence of local holomorphic solutions Y of linear partial differential equations in three complex variables whose coefficients are holomorphic on some polydisc in outside some singular set .
A. Lastra, S. Malek, C. Stenger
doaj +1 more source
Rural and Remote Health, 2023 Introduction: Universal access to health services and universal health coverage are needed to achieve good health for all, yet rural communities face a variety of access barriers.
Natalia Houghton +7 more
doaj +1 more source
Backreacting D-brane instantons on branes at singularities
Journal of High Energy Physics, 2017 Non-perturbative D-brane instanton effects in 4d N = 1 $$ \mathcal{N}=1 $$ string compactifications can be geometrized in terms of a backreacted generalized geometry. We extend earlier results to setups in which the D-brane instanton is charged under the
Eduardo García-Valdecasas Tenreiro +1 more
doaj +1 more source