In 1926–27, Cartan gave a series of lectures in which he introduced exterior forms at the very beginning and used extensively orthogonal frames throughout to investigate the geometry of Riemannian ...

As organisms develop from embryos, groups of cells migrate and reshape themselves to form all manner of complex tissues.

Functorial Semantics of Algebraic Theories Original unpublished; Ph.D. thesis, Columbia University, 1963. See extended TAC reprint 2004 1963 Functorial Semantics of Algebraic Theories (short notice) ...

Arkansas is changing fast, and we’re here to help you make sense of it. Sign up today and receive the news that's important to you straight to your inbox. We’re here to hold power accountable, but we ...

Google’s NotebookLM is experimenting with a feature that could make studying feel a lot more like attending an actual class. A new Lecture mode can turn your uploaded notes, documents, and sources ...

Can you chip in? As an independent nonprofit, the Internet Archive is fighting for universal access to quality information. We build and maintain all our own systems, but we don’t charge for access, ...

The mathematician, Manjul Bhargava, Fields Medal winner and professor at Princeton, delivered a lecture in India that has since stirred no small amount of controversy. Dressed in kurta-pyjama, a ...

This course provides a comprehensive introduction to computer vision. Major topics include image processing, detection and recognition, geometry-based and physics-based vision and video analysis.

Abstract: Bandpass sampling (BPS) means sampling a bandlimited signal at rates below the baseband Nyquist rate (defined as twice the highest frequency in the signal spectrum) and still allowing ...

Available for web and mobile devices, Turbo AI works as a kind of “copilot"The Study" — a space where users can gather materials in different formats and let artificial intelligence do the heavy ...

Abstract: In many applications in science and engineering, one is given the modulus squared of the Fourier transform of an unknown signal and then tasked with solving the corresponding inverse problem ...