In cognitive tests for recognizing certain types of patterns, crows outperformed monkeys. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Crows ...

This study presents recursive relations on the permanents of k – tridiagonal Toeplitz matrices which are obtained by the reduction of the matrices to the other matrices whose permanents are easily ...

If you are a SQL programmer, learning recursive SQL techniques can be a boon to your productivity. A recursive query is one that refers to itself. I think the best way to quickly grasp the concept of ...

In this paper we study the Alexander dual of a vertex decomposable simplicial complex. We define the concept of a vertex splittable ideal and show that a simplicial complex Δ is vertex decomposable if ...