The Providence Journal used that pricing data to analyze 19 billing codes at 10 of the state’s acute-care hospitals.

Abstract: We give an algorithm that computes exact maximum flows and minimum-cost flows on directed graphs with m edges and polynomially bounded integral demands ...

Abstract: Algebraic connectivity, the second smallest eigenvalue of the graph Laplacian matrix, is a fundamental performance measure in various network systems, such as multi-agent networked systems.

A day of military and monarchical pageantry demonstrated Britain’s eagerness to appeal to a president who has seemed intent on upending the post-World War II order. By Michael D. Shear Reporting from ...