Abstract: Art, mathematics, physics, nature and design are the "ingredients" present in the works of Escher, a brilliant and tormented artist, capable of realizing so many paradoxes of perspective, geometry and composition that form the basis of his works and continue to inspire generations of new artists to this day. The Droste effect is a special visual effect achieved when an image contains a smaller version of itself. These are recursive images, which can potentially be repeated ad infinitum. Escher’s "print gallery" from 1956 represents his mastery of creating mathematical puzzles and geometric paradoxes at the highest level. I will present Hendrik Lenstra’s mathematical explanation of this puzzle using the mesmerising visual illustrations created by the Leiden number theory group.
This talk will be non-technical and accessible to a general audience.