Results 91 to 100 of about 74,369 (230)

A stringy test of the Scalar Weak Gravity Conjecture

open access: yesNuclear Physics B, 2019
We prove a version of the Weak Gravity Conjecture for 6d F-theory or heterotic string compactifications with 8 supercharges. This sharpens our previous analysis by including massless scalar fields.
Seung-Joo Lee   +2 more
doaj  

Properness of nilprogressions and the persistence of polynomial growth of given degree

open access: yesDiscrete Analysis, 2018
Properness of nilprogressions and the persistence of polynomial growth of given degree, Discrete Analysis 2018:17, 38 pp. A $k$-_dimensional arithmetic progression_ is a set $P$ of the form $\{a_0+\sum_{i=1}^ka_id_i:0\leq ...
Romain Tessera, Matthew Tointon
doaj   +1 more source

A lower bound on the essential dimension of a connected linear group

open access: yes, 2007
Let G be a connected linear algebraic group defined over an algebraically closed field k and H be a finite abelian subgroup of G whose order is prime to char(k).
Gille, Philippe, Reichstein, Zinovy
core   +2 more sources

Counting topological types of finite group actions

open access: yes, 2017
We study fully ramified actions of the elementary abelian $p$ group of rank $k\geq 1$, on surfaces of genus $g$, obtaining explicit counts of topological equivalence classes via a combinatorial approach.
Carvacho, Mariela, Weaver, Anthony
core  

Towards a complete classification of 6D supergravities

open access: yesJournal of High Energy Physics
The constraints arising from anomaly cancellation are particular strong for chiral theories in six dimensions. We make progress towards a complete classification of 6D supergravities with minimal supersymmetry and non-abelian gauge group.
Yuta Hamada, Gregory J. Loges
doaj   +1 more source

Phases with modular ground states for symmetry breaking by rank 3 and rank 2 antisymmetric tensor scalars

open access: yesPhysics Letters B, 2015
Working with explicit examples given by the 56 representation in SU(8), and the 10 representation in SU(5), we show that symmetry breaking of a group G⊃G1×G2 by a scalar in a rank three or two antisymmetric tensor representation leads to a number of ...
Stephen L. Adler
doaj  

Topological symmetries of simply-connected four-manifolds and actions of automorphism groups of free groups

open access: yes, 2018
Let $M$ be a simply connected closed $4$-manifold. It is proved that any (possibly finite) compact Lie group acting effectively and homologically trivially on $M$ by homeomorphisms is an abelian group of rank at most two.
Ye, Shengkui
core  

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