We present an Oppenheim type determinantal inequality for positive definite block matrices. Recently, Lin [Linear Algebra Appl. 2014;452:1–6] proved a remarkable extension of matrices, which solved conjecture Günther and Klotz. There is requirement that two matrices commute in Lin's result. The motivation this paper to obtain another natural general get rid the commute.

The screening testing is an effective tool to control the early spread of infectious disease such as COVID-19. When total capacity limited, we aim optimally allocate resources among n counties. We build a (weighted) commute network on counties, with weight between two counties decreasing function their traffic distance. introduce network-based model, in which number newly confirmed cases each c...

This paper seeks to understand extreme public transit riders in Beijing using both traditional household survey and emerging new data sources such as Smart Card Data (SCD). We focus on four types of extreme transit behaviors: public transit riders who (1) travel significantly earlier than average riders (the ‘early birds’); (2) ride in unusual late hours (the ‘night owls’); and (3) commute in e...

Abstract Affordable housing has become essential to provide with affordable prices, but most of the locations are often not suitable people’s demand. To assess suitability housing, several initiatives been developed, match demand and location models lacks spatial element, other model focusing on goal related site cities, preferences housing. This study aims integrating information analysis asse...