• Keine Ergebnisse gefunden

Minimal bases in actions of simple groups Tim Burness, Oxford

N/A
N/A
Protected

Academic year: 2022

Aktie "Minimal bases in actions of simple groups Tim Burness, Oxford"

Copied!
1
0
0

Wird geladen.... (Jetzt Volltext ansehen)

Volltext

(1)

Minimal bases in actions of simple groups

Tim Burness, Oxford

Let G be a permutation group on a set Ω. A base for (G,Ω) is a subset B ⊆ Ω whose pointwise stabilizer G(B) is trivial; B is minimal if G(B−{b}) is non-trivial for all b∈B. Bases arise naturally in computational group theory, and minimal bases are of particular importance.

In this talk, we consider bases for primitive actions of finite almost simple groups. We present some new results on the size of minimal bases for such actions and report on recent progress towards an explicit version of the base size conjecture of Cameron and Kantor.

1

Referenzen

ÄHNLICHE DOKUMENTE

Forecasts and constraints on policy actions: the reliability of alternative instruments. Bianchi, Carlo and Brillet, Jean-Louis and

!It asserts two immediately testable hypotheses concerning the cross-section relationship between the size and growth of firms: (a) that firms of different size-classes have the

We study the maximum number of minimal codewords in binary linear codes of a given length and dimension.. Improved lower and upper bounds on the maximum number

We derive a lower bound on the number of minimal codewords of a linear code using a geometric characterization of minimal (and non-minimal) codewords.. As a consequence, we obtain

Atkinson suggested that multiplying probability of success and incentive value will give a good estimate of whether a person will choose to work on a task, especially when

Understanding events as actions or sequences of actions raises the question of how, for example, natural disasters can be taken into account in sociological and

We are particularly interested in addressing the role of international migration because the continuous influx of young immigrants can main- tain youthful age composition of

Models for simultaneous hermaphrodites typically predict the constant optimal sex allocation (relative investment in male versus female function), independent of individual