Operad

We Love Opera! What is an aria in an opera?

A quick definition of the opera term "aria." It's basically a long solo - all eyes on you! Want to go to the opera, but you're not sure you'll understand what's going on? "We Love Opera" is a video series from Socratica that will help you understand what opera is all about. Opera can be

From playlist Opera Glossary

We Love Opera! What is a libretto in an opera?

A quick definition of the "libretto" in an opera. Pick one up ahead of time if you want to know the story going in! Want to go to the opera, but you're not sure you'll understand what's going on? "We Love Opera" is a video series from Socratica that will help you understand what opera

From playlist Opera Glossary

We Love Opera! What is the interlude at the opera?

A quick definition of an "interlude" in an opera. Don't mix it up with intermission! Want to go to the opera, but you're not sure you'll understand what's going on? "We Love Opera" is a video series from Socratica that will help you understand what opera is all about. Opera can be ex

From playlist Opera Glossary

We Love Opera! What is a prima donna?

A quick definition of the opera term "prima donna." It's not what you think! Want to go to the opera, but you're not sure you'll understand what's going on? "We Love Opera" is a video series from Socratica that will help you understand what opera is all about. Opera can be exciting, fu

From playlist Opera Glossary

We Love Opera! What is a recitative in an opera?

A quick definition of the opera term "recitative." It's a little break from the more complicated singing. Want to go to the opera, but you're not sure you'll understand what's going on? "We Love Opera" is a video series from Socratica that will help you understand what opera is all abo

From playlist Opera Glossary

Benoit Fresse: Rational homotopy theory, the little discs operads and graph complexes (Lecture 2)

The little cubes operads (and the equivalent little discs operads) were introduced by Boardman-Vogt and May for the study of iterated loop spaces. The study of the little cubes operads has been completely renewed during the last decade and new applications of these objects have been discov

From playlist HIM Lectures: Junior Trimester Program "Topology"

Benoit Fresse: Rational homotopy theory, the little discs operads and graph complexes (Lecture 3)

The little cubes operads (and the equivalent little discs operads) were introduced by Boardman-Vogt and May for the study of iterated loop spaces. The study of the little cubes operads has been completely renewed during the last decade and new applications of these objects have been discov

From playlist HIM Lectures: Junior Trimester Program "Topology"

David Spivak - Sense-making: accounting for intelligibility - IPAM at UCLA

Recorded 19 February 2022. David Spivak of the Topos Institute presents "Sense-making: accounting for intelligibility" at IPAM's Mathematics of Collective Intelligence Workshop. Abstract: A mathematical field can be thought of as an accounting system: we use arithmetic in finance to accoun

From playlist Workshop: Mathematics of Collective Intelligence - Feb. 15 - 19, 2022.

We Love Opera! What is an operetta? Is it the same as an opera?

What's the difference between an opera and an operetta? Here's a quick answer. Want to go to the opera, but you're not sure you'll understand what's going on? "We Love Opera" is a video series from Socratica that will help you understand what opera is all about. Opera can be exciting, f

From playlist Opera Glossary

Tashi Walde: 2-Segal spaces as invertible infinity-operads

The lecture was held within the framework of the Hausdorff Trimester Program: Symplectic Geometry and Representation Theory. Abstract: We sketch the theory of (infinity-)operads via Segal dendroidal objects (due to Cisinski, Moerdijk and Weiss). We explain its relationship with the theory

From playlist HIM Lectures: Trimester Program "Symplectic Geometry and Representation Theory"

Associahedra: The Shapes of Multiplication | Infinite Series

Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/donateinfi What happens when you multiply shapes? This is part 2 of our episode on multiplying things that aren't numbers. You can check out part 1: The Multiplication Multiverse

From playlist An Infinite Playlist

We Love Opera! What kind of opera is opera seria?

A seriously quick definition of "opera seria." No joke! Want to go to the opera, but you're not sure you'll understand what's going on? "We Love Opera" is a video series from Socratica that will help you understand what opera is all about. Opera can be exciting, funny, sad, and beauti

From playlist Opera Glossary

We Love Opera! What does "bravo" mean at the opera?

A quick definition of the opera term "bravo." When do you say it? Want to go to the opera, but you're not sure you'll understand what's going on? "We Love Opera" is a video series from Socratica that will help you understand what opera is all about. Opera can be exciting, funny, sad, a

From playlist Opera Glossary

Gregory Arone: Calculus of functors and homotopy theory (Lecture 2)

The lecture was held within the framework of the (Junior) Hausdorff Trimester Program Topology: "Seminar on Functor Calculus and Chromatic Methods" Abstract: The derivatives of a functor have a bimodule structure over a certain operad. If the Tate homology of the derivatives vanish, then

From playlist HIM Lectures: Junior Trimester Program "Topology"

Little disks operads and Feynman diagrams – Thomas Willwacher – ICM2018

Mathematical Physics | Topology Invited Lecture 11.3 | 6.5 Little disks operads and Feynman diagrams Thomas Willwacher Abstract: The little disks operads are classical objects in algebraic topology which have seen a wide range of applications in the past. For example they appear prominen

From playlist Mathematical Physics

We Love Opera! Who is the chorus at the opera?

What's the role of the chorus in the opera? Want to go to the opera, but you're not sure you'll understand what's going on? "We Love Opera" is a video series from Socratica that will help you understand what opera is all about. Opera can be exciting, funny, sad, and beautiful. Opera is

From playlist Opera Glossary

Johan Alm: Brown's dihedral moduli space and freedom of the gravity operad

Abstract: Ezra Getzler's gravity cooperad is formed by the degree-shifted cohomology groups of the open moduli spaces M_{0,n}. Francis Brown introduced partial compactifications of these moduli spaces, denoted M_{0,n}^δ. We prove that the (nonsymmetric) gravity cooperad is cofreely cogener

From playlist HIM Lectures: Junior Trimester Program "Topology"

Philip Hackney: Higher cyclic operads

The lecture was held within the framework of the (Junior) Hausdorff Trimester Program Topology and the Workshop: Interactions between operads and motives (16.09.2016)

From playlist HIM Lectures: Junior Trimester Program "Topology"

We Love Opera! What kind of an opera is opera buffa?

A quick definition of "opera buffa." Does it remind you of "buffoon?" Want to go to the opera, but you're not sure you'll understand what's going on? "We Love Opera" is a video series from Socratica that will help you understand what opera is all about. Opera can be exciting, funny, sa

From playlist Opera Glossary

K. Ebrahimi-Fard: An operadic derivation of twisted factorisation for operator-valued T-transform

Talk at the conference "Noncommutative geometry meets topological recursion", August 2021, University of Münster. Abstract: Together with Nicolas Gilliers, we have tried to understand how an operadic perspective might help to formulate a more transparent, i.e., combinatorial derivation of

From playlist Noncommutative geometry meets topological recursion 2021