activity
20122022
most citedAction of Automorphisms on Irreducible Characters of Symplectic Groups

53 citations · 162 across the 14 of their papers we have counts for

collaborators

15 papers

math.RT2022

Character bounds for regular semisimple elements and asymptotic results on Thompson's conjecture

Michael Larsen, Jay Taylor, Pham Tiep

For every integer there exists a bound such that if the characteristic polynomial of is the product of pairwise distinct monic ir…

math.RT2020★ 1 cited

Harish-Chandra Cuspidal Pairs

Jay Taylor

The irreducible characters of a finite reductive group are partitioned into Harish-Chandra series that are labelled by cuspidal pairs. In this note, we describe how one can algorit…

math.RT2019★ 20 cited

Unitriangular Shape of Decomposition Matrices of Unipotent Blocks

Olivier Brunat, Olivier Dudas, Jay Taylor

We show that the decomposition matrix of unipotent -blocks of a finite reductive group has a unitriangular shape, assuming is a power of a good…

math.RT2018★ 7 cited

Lusztig Induction, Unipotent Supports, and Character Bounds

Jay Taylor, Pham H. Tiep

Recently, a strong exponential character bound has been established in [3] for all elements of a finite reductive group which satisfy the condit…

math.RT2017★ 2 cited

Principal -Blocks and Sylow -Subgroups

A. A. Schaeffer Fry, Jay Taylor

Let be a finite group with Sylow -subgroup . Navarro-Tiep-Vallejo have conjectured that the principal -block of contains exactly one irreducible B…

math.RT2017★ 13 cited

The Structure of Root Data and Smooth Regular Embeddings of Reductive Groups

Jay Taylor

We investigate the structure of root data by considering their decomposition as a product of a semisimple root datum and a torus. Using this decomposition we obtain a parameterisat…

math.RT2017★ 38 cited

On The Mackey Formula for Connected Centre Groups

Jay Taylor

Let be a connected reductive algebraic group over and let be a Frobenius endomorphism endowing w…

math.RT2017

On Self-Normalising Sylow -Subgroups in Type A

Amanda Schaeffer Fry, Jay Taylor

Navarro has conjectured a necessary and sufficient condition for a finite group to have a self-normalising Sylow -subgroup, which is given in terms of the ordinary irreducib…

math.RT2016★ 53 cited

Action of Automorphisms on Irreducible Characters of Symplectic Groups

Jay Taylor

Assume is a finite symplectic group over a finite field of odd characteristic. We describe the action of the automorphism group $\mathrm{Au…

math.RT2016★ 5 cited

A Note on Skew Characters of Symmetric Groups

Jay Taylor

In previous work Regev used part of the representation theory of Lie superalgebras to compute the values of a character of the symmetric group whose decomposition into irreducible…

math.RT2014★ 3 cited

Induced Characters of Type D Weyl Groups and the Littlewood-Richardson Rule

Jay Taylor

For any ordinary irreducible character of a maximal reflection subgroup of type of a type Weyl group we give an explicit decomposition of the induced character in term…

math.RT2014★ 2 cited

Generalised Gelfand-Graev Representations in Small Characteristics

Jay Taylor

Let be a connected reductive algebraic group over an algebraic closure of the finite field of prime order and let $F : \mathbf{G} \to \ma…

math.RT2014★ 13 cited

Evaluating Characteristic Functions of Character Sheaves at Unipotent Elements

Jay Taylor

Assume is a connected reductive algebraic group defined over an algebraic closure of the finite field of prime order . Furt…

math.RT2013★ 1 cited

Multiplicities in GGGRs for Classical Type Groups with Connected Centre I

Jay Taylor

Assume is a connected reductive algebraic group defined over such that is good prime for . Furthermore we assume that is connected and $G/Z(G…

math.RT2012★ 4 cited

Finding Characters Satisfying a Maximal Condition for Their Unipotent Support

Jay Taylor

In this article we extend independent results of Lusztig and Hézard concerning the existence of irreducible characters of finite reductive groups, (defined in good characteristic a…