Results 61 to 70 of about 351,610 (104)

A physical basis for cosmological correlators from cuts

Journal of High Energy Physics
Significant progress has been made in our understanding of the analytic structure of FRW wavefunction coefficients, facilitated by the development of efficient algorithms to derive the differential equations they satisfy.
Shounak De, Andrzej Pokraka
doaj   +1 more source

Kinematic flow from the flow of cuts

Journal of High Energy Physics
The wavefunction coefficients of conformally coupled scalars in power-law FRW cosmologies satisfy differential equations governed by a set of simple combinatorial rules known as the kinematic flow.
Ross Glew, Andrzej Pokraka
doaj   +1 more source

The face semigroup algebra of a hyperplane arrangement

, 2005
The first part of this thesis studies the face semigroup algebra of a hyperplane arrangement. The quiver with relations of the algebra is computed and the algebra is shown to be a Koszul algebra.
Franco Valentino Saliola, Franco V Saliola   +1 more
core  

Bimonoids for hyperplane arrangements

, 2020
Develops a new theory, parallel to the classical theory of connected Hopf algebras, including a real hyperplane ...
Aguiar, Marcelo, Mahajan, Swapneel
core  

Hyperplane arrangements associated to symplectic quotient singularities [PDF]

, 2018
We study the hyperplane arrangements associated, via the minimal model programme, to symplectic quotient singularities. We show that this hyperplane arrangement equals the arrangement of CM-hyperplanes coming from the representation theory of restricted ...
Schedler, Travis, Bellamy, Gwyn, Thiel, Ulrich   +2 more
core   +1 more source

A combinatorial statistic for labeled threshold graphs [PDF]

Enumerative Combinatorics and Applications, 2021
Priyavrat Deshpande, Krishna Menon, Anurag Singh   +2 more
doaj  

The homotopy Lie algebra of a complex hyperplane arrangement is not necessarily finitely presented

, 2008
We present a theory that produces several examples where the homotopy Lie algebra of a complex hyperplane arrangement is not finitely presented. We also present examples of hyperplane arrangements where the enveloping algebra of this Lie algebra has an ...
Roos, Jan-Erik,
core  

Perverse Sheaves and Hyperplane Arrangements

, 2017
The category of Perverse Sheaves is known to be an Abelian and Artinian category. As a result, we can talk about the length and decomposition factors of a perverse sheaf. In this thesis we look at a class of perverse sheaves arising from local systems on
Luis Ernesto Saumell (17554713)
core   +1 more source

Odd Khovanov homology for hyperplane arrangements

, 2016
We define several homology theories for central hyperplane arrangements, categorifying well-known polynomial invariants including the characteristic polynomial, Poincaré polynomial, and Tutte polynomial.
Dancso, Zsuzsanna, Licata, Anthony
core   +1 more source

Group Actions on Hyperplane Arrangements [PDF]

, 2012
In this dissertation, we will look at two families of algebras with connections to hyperplane arrangements that admit actions of finite groups. One of the fundamental questions to ask is how these decompose into irreducible representations. For the first
Moseley, Daniel
core   +1 more source