When his bracelet broke, she thought a last trace of his ex was gone. But he’s so set on fixing it that she is starting to crack. Letter writer wants to keep hosting the holidays, but the burden of ...

Michelle Singletary writes the nationally syndicated personal finance column “The Color of Money,” which appears in The Washington Post on Wednesdays and Sundays. If you have a personal finance ...

Abstract: In this article, we provide a distributed optimization algorithm, termed as TV-AB, that minimizes a sum of convex functions over time-varying, random directed graphs. Contrary to the ...