The Russian shipments, which haven’t been previously reported, underscore the deepening strategic alliance between Moscow and Tehran.

In a recent Subject To podcast with Bob Vanderbei he mentions a primal-dual simplex algorithm. Bob also discusses the algorithm in his Line...

Officials in Tehran got the United States to sign a document that even Americans described as degrading, mortifying, a total capitulation.

Hi All,

My weekly update on war & competition. This week, Ukraine's continuing deep strikes, Russia's big hit on Kyiv, the Xi-Trump summit in Beijing and my Big 5 reading recommendations.

Washington can’t reverse or control the consequences of losing this war.

And the recovery of justice

Trump said the U.S. blockade will stop Iran from policing the strait and benefiting economically while the rest of the world suffers from its closure.

Even in a trench, some things still feel human. A Ukrainian soldier grabs a few minutes of sleep with a cat curled into his chest, somewhere between exhaustion and duty. War strips away a lot. It als...

Allied leaders know that any positive gesture they make will count for nothing.

We give a near-linear time 4-coloring algorithm for planar graphs, improving on the previous quadratic time algorithm by Robertson et al. from 1996. Such an algorithm cannot be achieved by the known p...