摘要:

Refining the notion of regularity introduced by Dickson, an integral quadratic form is said to be spinor regular if it represents all integers represented by its spinor genus. Examples of positive definite primitive integral ternary quadratic forms which have this property are presented, and it is proved that there exist only finitely many equivalence classes containing such forms.

ISSN:0024-6107    

DOI:10.1112/jlms/s2-42.1.1

出版商:Oxford University Press    

年代:2016

数据来源: WILEY

ISSN:0024-6107    

DOI:10.1112/jlms/s2-42.1.11

出版商:Oxford University Press    

年代:2016

数据来源: WILEY

ISSN:0024-6107    

DOI:10.1112/jlms/s2-42.1.32

出版商:Oxford University Press    

年代:2016

数据来源: WILEY

ISSN:0024-6107    

DOI:10.1112/jlms/s2-42.1.49

出版商:Oxford University Press    

年代:2016

数据来源: WILEY

ISSN:0024-6107    

DOI:10.1112/jlms/s2-42.1.64

出版商:Oxford University Press    

年代:2016

数据来源: WILEY

摘要:

It is shown that ifGis a permutation group on a countable setXand ifGis not highly transitive, thenGis contained in some maximal proper subgroup of the full symmetric group onX.

ISSN:0024-6107    

DOI:10.1112/jlms/s2-42.1.85

出版商:Oxford University Press    

年代:2016

数据来源: WILEY

ISSN:0024-6107    

DOI:10.1112/jlms/s2-42.1.93

出版商:Oxford University Press    

年代:2016

数据来源: WILEY

ISSN:0024-6107    

DOI:10.1112/jlms/s2-42.1.101

出版商:Oxford University Press    

年代:2016

数据来源: WILEY

ISSN:0024-6107    

DOI:10.1112/jlms/s2-42.1.111

出版商:Oxford University Press    

年代:2016

数据来源: WILEY

摘要:

LetEbe a locally convex (Souslinean) topological vector space and μ an arbitrary (not necessarily quasi‐invariant) probability measure onE. We prove a characterization of the set of allk∈E∖{0} for which a partial integration formula holds for the corresponding derivative δ/δk. As a consequence we improve a recent result by two of the authors on the maximality problem for classical Dirichlet forms.

ISSN:0024-6107    

DOI:10.1112/jlms/s2-42.1.122

出版商:Oxford University Press    

年代:2016

数据来源: WILEY