30 Algebras over the little disks operad 2010-04-26T11:18:41.590

30 Why are operads useful? 2011-08-09T17:20:37.967

26 Why should have Peter May worked with CGWH instead of CGH in "The Geometry of Iterated Loop Space"? 2015-04-28T14:19:29.270

25 Shuffle Hopf algebra: how to prove its properties in a slick way? 2011-05-04T15:27:52.593

22 What's up with Wick's theorem? 2010-11-25T17:58:37.710

18 Little disks operad and $Gal (\bar {Q}/Q)$ 2010-09-28T08:52:31.063

18 Higher homotopy algebraic structure on the homology of an operad 2011-01-15T22:13:32.470

18 Positivity of coefficients of the inverse of a certain power series 2015-11-02T15:34:57.623

17 Kontsevich's conjectures on the Grothendieck-Teichmüller group? 2010-10-14T13:38:24.927

17 Good reference for studying operads? 2013-08-09T16:36:44.790

16 Deligne's conjecture (the little discs operad one) 2009-10-12T19:59:08.090

16 On Tamarkin's proof of Etingof-Kazhdan quantization of Lie bialgebra 2013-02-17T20:06:29.560

15 Are G_infinity algebras B_infinity? Vice versa? 2010-04-06T00:56:25.747

15 What is this operad-like structure called? 2014-05-31T14:16:59.100

15 Homotopy transfer in the opposite direction 2015-05-18T14:29:28.290

15 What homotopy classes can attaching an $E_n$-cell kill? 2017-07-18T20:33:56.860

14 Splitting of homomorphism from cactus group to permutation group 2011-05-17T23:58:51.220

14 Free Loop-Space Recognition Principle 2015-02-22T18:32:30.783

14 Is this an $E_\infty$-algebra? 2017-12-14T16:07:32.263

13 Are Lurie's operads special SMCs? 2013-03-26T20:50:46.513

13 Is the Amitsur-Levitzki identity essentially unique? 2014-11-21T15:08:16.257

12 koszul duality and algebras over operads 2010-09-22T02:41:49.363

12 GL(V)-representation theory for a Lie bracket kernel 2011-05-24T21:09:48.287

12 Compatibility of the KZ connection with operadic composition 2012-03-22T15:48:09.197

12 Correspondence between operads and $\infty$-operads with one object 2013-07-01T10:34:26.797

12 Tensor product of dendroidal sets: counter-examples 2015-02-20T16:51:03.827

11 Model structure for cooperads and for coalgebras 2013-11-11T23:08:47.197

11 Does the $(\mathbb Z/2)$-graded isomorphism $E_n \cong E_{n+2}$ have any nice properties? 2014-12-13T00:09:22.723

11 Is the operadic nerve functor an equivalence of ∞-categories? 2016-09-15T17:53:20.427

10 Question about $A_\infty$ maps 2011-01-12T03:22:17.363

10 Non-$\Sigma$ $E_n$ algebras? 2013-02-22T09:07:00.553

10 $k$-Disk algebras versus $E_k$ algebras 2014-09-25T22:08:02.370

10 Are $E_n$-operads not formal in characteristic not equal to zero? 2015-09-18T08:50:16.080

10 When does an $E_\infty$ algebra come from a commutative differential graded algebra? 2016-03-05T10:48:48.977

10 Affine spaces as algebras for an operad? 2017-01-25T05:20:49.493

10 What is the relation between 2-Gerstenhaber, CohFT, and Gerstenhaber geometrically? 2017-09-07T21:39:55.730

9 When do PROP-morphisms induce adjunctions? 2009-10-20T21:29:48.847

9 Do I need to know what an infinity-Gerstenhaber algebra is, and if so, what is it? 2011-04-29T06:07:03.650

9 Why are operads so closely connected to mathematical physics? 2011-08-09T21:23:17.593

9 Are pivotal categories the algebras for a cartesian monad? 2012-07-06T14:09:14.890

9 Seeking errata for Berger-Moerdijk Axiomatic Homotopy Theory for Operads 2013-05-03T16:30:08.753

9 Tensor products over operads and bar constructions 2015-06-12T18:36:49.713

9 Grothendieck Construction, Categories of Operators and Opposites 2016-06-14T04:52:41.787

9 Detailed proof that $\circ_i$ operads are the same as operads 2016-09-02T09:06:55.013

8 How does Berger-Moerdijk's relative Boardman-Vogt work? 2010-10-29T18:32:30.017

8 PBW theorem over a Q-algebra, without freeness or flatness 2011-04-16T20:56:37.013

8 Is there a "derived" Free $P$-algebra functor for an operad $P$? 2011-08-03T21:09:26.837

8 When can I assure that the representation theory of a PROP is faithful? 2012-01-27T18:50:24.717

8 Delooping and unreduced operads 2012-09-04T12:23:31.300

8 Is the operadic butterfly symmetric? 2013-03-02T20:14:51.133

8 Identifying the little disk operad with parenthesized braids 2013-07-09T15:02:03.090

8 Galois action on $E_n$-operads 2013-10-05T14:31:14.557

8 Correspondence between operads and monads requires tensor distribute over coproduct? 2013-12-25T07:18:07.153

8 Explict form of $E_\infty$-morphisms between differential graded commutative algebras 2015-03-06T08:59:55.853

8 When is a quasicategory over $N(\Delta)^{op}$ a planar $\infty$-operad? 2015-04-09T23:53:51.860

8 What are algebras for the little n-balls/n-cubes/n-something operads exactly? 2015-06-03T13:56:29.103

8 Operads and the Stable Module Category 2015-10-08T12:03:32.040

8 In what sense are operads "better" than PROPs? 2016-05-12T10:19:22.847

8 Framed higher Hochschild cohomology 2016-11-03T21:01:25.083

7 Koszul duality for modular operads 2012-08-29T13:39:08.020

7 How to define the equivalence of Maurer-Cartan elements in an $L_{\infty}$-algebra? 2012-08-30T05:22:48.577

7 How universal is operadic approach to studying algebras? 2013-08-31T05:20:39.873

7 understanding the definition of $\infty$-operad of module objects 2014-04-14T19:42:01.007

7 A model category for E-infty algebras in a non-monoidal model category? 2015-02-05T11:28:38.550

7 When are the categories of algebras over props (co)complete? 2015-10-20T15:55:05.317

7 Does this notion related to species/operads/FI-modules have a name? 2016-02-02T08:07:57.383

7 Monomorphisms in operad algebras 2016-03-04T01:43:12.977

7 What are types of coalgebras that are more naturally described by cooperads? 2016-05-26T08:58:14.627

7 Does every equivalence of operads in the category of small categories have a weak inverse? 2016-10-25T12:26:07.090

6 Pontryagin product from an operad 2009-10-19T09:41:55.397

6 Do you recognise this variant of the cubes operad? 2010-08-26T06:37:49.700

6 Classifying spaces of E_1 - spaces 2011-03-15T15:28:51.720

6 Semidirect products and PROPs 2011-04-14T18:29:19.110

6 Is there a cheap proof that (homotopy) endomorphisms are functorial? 2012-05-19T12:58:50.727

6 Is the definition of Gerstenhaber bracket related to operads? 2013-08-15T04:12:20.577

6 Obstructions for $E_n$-algebras 2014-12-10T22:57:19.530

6 What is the endomorphism cooperad? 2017-06-02T19:17:50.110

6 Tensor products of $\infty$-algebras over operads 2018-02-04T16:01:18.243

5 Commutative diagrams for groups 2011-02-16T16:48:29.577

5 A-infinity structure of E-infinity algebras 2011-03-13T00:17:07.940

5 Where does the definition of "Tower of Algebras" come from? 2011-09-18T20:31:12.663

5 Repertory of the different sorts of operads 2013-02-26T08:38:37.807

5 What's a good reference for the following obstruction theory yoga? 2014-02-01T19:27:56.987

5 $E_n$-space and n-connected pointed space 2014-12-05T11:04:05.633