搜索结果: 1-15 共查到“commuting”相关记录29条 . 查询时间(0.037 秒)
In a provocative article, Hamilton [l] demonstrates that the simple
monocentric model of urban location, modified to allow for decentralized
employment, does a poor job of predicting actual commutin...
The aim of this note is to extend the notion of commutativity of vector fields to the category of singular foliations, using Nambu structures, i.e. integrable multi-vector fields. We will show some ba...
Riemann-Hilbert Problems with canonical normalization and families of commuting operators
Riemann-Hilbert Problems commuting operators integrable 3-wave interactions
2012/4/26
We start with a Riemann-Hilbert Problems (RHP) with canonical normalization whose sewing functions depends on several additional variables. Using Zakharov-Shabat theorem we are able to construct a fam...
On the Commuting variety of a reductive Lie algebra and other related varieties
polynomial algebra complex commuting variety desingularization Gorenstein Cohen-Macaulay rational singularities cohomology
2012/4/18
In this note, one discusses about some varieties which are constructed analogously to the isospectral commuting varieties. These varieties are subvarieties of varieties having very simple desingulariz...
The attributes of residence/workplace areas and transit commuting
Commuting Transit Neighborhoods Residence Workplace
2013/11/21
Area type matters when we try to explain variations in public transit commuting; workplace (commuting destination) type matters
more than residence (origin) type. We found this statistical link over ...
U.S. Commuting Networks and Economic Growth: Measurement and Implications for Spatial
economic growth entropy measures regional governance economic activity
2011/9/11
Labor market areas (LMAs) have long been a staple of regional and urban analysis. As commuting patterns have expanded over time, these areas have become larger and more complex, and the dichotomous de...
The Effect of Health on Income: Quasi-Experimental Evidence from Commuting Accidents
health employment income
2012/10/26
This paper interprets accidents occurring on the way to and from work as negative health shocks to identify the causal effect of health on labor market outcomes. We argue that in our sample of exactly...
Almost commuting unitary matrices related to time reversal
unitary matrices time reversal Operator Algebras
2011/9/16
Abstract: The behavior of fermionic systems depends on the geometry of the system and the symmetry class of the Hamiltonian and observables. Almost commuting matrices arise from band-projected positio...
Self-adjoint commuting differential operators and commutative subalgebras of the Weyl algebra
Self-adjoint commuting differential operators commutative subalgebras the Weyl algebra Mathematical Physics
2011/9/13
Abstract: In this paper we give enough conditions when the operator of the fourth order included in a commutative ring of ordinary differential operators of rank 2 is formally self-adjoint. In the cas...
Commuting time geometry of ergodic Markov chains
Commuting time geometry ergodic Markov chains Probability
2011/9/5
Abstract: We show how to map the states of an ergodic Markov chain to Euclidean space so that the squared distance between states is the expected commuting time. We find a minimax characterization of ...
On rings of commuting partial differential operators
partial differential operators Algebraic Geometry
2011/7/27
Abstract: We give a natural generalization of the classification of commutative rings of ordinary differential operators, given in works of Krichever, Mumford, Mulase, and determine commutative rings ...
Commuting Time and Labour Supply: A Causal Effect?
commuting labour supply productivity causality Time Use Survey
2012/11/1
We analyze the causal effect of the length of the worker’s commute on worker's productivity, by examining whether commuting time has any effect on worker's labour market supply. Using the Spanish Time...
Three commuting, unital, completely positive maps that have no minimal dilation
Product system subproduct system semigroups of completely positive maps
2011/1/20
In this note we prove that there exist at least two examples of three commuting, unital, completely positive maps that have no dilation on a type I factor, and no minimal dilation on any von Neumann a...
People’s preferences for commuting in sparsely populated areas: The case of Sweden
People’s preferences for commuting sparsely populated areas The case of Sweden
2010/10/25
In a time of decreased inclination to migrate and an increased place attachment, increasing commuting can improve the functionality of local labor markets. In regional development policy in Sweden, fa...
Modeling commuting systems through a complex network analysis: A study of the Italian islands of Sardinia and Sicily
Modeling commuting systems through complex network analysis A study Italian islands Sardinia and Sicily
2010/10/25
This study analyzes the inter-municipal commuting systems of the Italian islands of Sardinia and Sicily, employing weighted network analysis technique. Based on the results obtained for the Sardinian ...