Multiplicity of migrants

Multiplicity of Resonances Equals Multiplicity of the Scattering Matrix

Regional retention of migrants

Urban Dreams of Migrants

Unprecedented human mobility has driven the rapid urbanization around the world. In China, the fraction of population dwelling in cities increased from 17.9% to 52.6% between 1978 and 2012. Such large-scale migration poses challenges for policymakers and important questions for researchers. To investigate the process of migrant integration, we employ a one-month complete dataset of telecommunic...

Extensions of the Multiplicity

The Multiplicity conjecture of Herzog, Huneke, and Srinivasan states an upper bound for the multiplicity of any graded k-algebra as well as a lower bound for Cohen-Macaulay algebras. In this note we extend this conjecture in several directions. We discuss when these bounds are sharp, find a sharp lower bound in case of not necessarily arithmetically Cohen-Macaulay one-dimensional schemes of 3-s...

Healthy Migrants or Health Migrants? Accounting For the Health Care Utilisation Patterns of Zimbabwean Migrants Living in South Africa

Background: There is a long history of migration between Zimbabwe and South Africa. In recent years there has been a significant increase in the mix of Zimbabweans migrating to South Africa in search of better economic opportunities, fleeing political persecution, to pursue education. Little is known about the public health impact of this migration, the healthcare needs of the different categor...