In this paper, we show that a graph G contains no 4-cycles if and only if ∥Ḡ∥ is a strong Z₂-deformation retract of the box complex ∥B (G)∥ of G, where Ḡ is the 1-dimensional free simplicial ...

Excel offers a wide variety of charts and graphs, each designed to help you uniquely visualize data. But choosing the right chart isnt always straightforward. Let's break down the essential Excel ...

Drawing and interpreting graphs and charts is a skill used in many subjects. Learn how to do this in science with BBC Bitesize. For students between the ages of 11 and 14.

Formulated in 1961 by mathematician Claude Berge, the conjecture states that two different types of graphs, called Berge graphs and perfect graphs, are actually the same.

Nevertheless, across many different types of trend participants consistently thought sales would be lower when the data were presented as bar charts than line graphs or point graphs.

Learn how to interpret and construct graphs in this guide for students aged 11 to 14 from BBC Bitesize.

It is possible to classify the types of causal relationships that can give rise to effect modification on the risk difference scale by expressing the conditional causal risk-difference as a sum of ...