1. |
A Saturated Model of an Unsuperstable Theory of Cardinality greater than its theory has the Small Index Property |
|
Proceedings of the London Mathematical Society,
Volume s3-69,
Issue 3,
1994,
Page 449-463
Garvin Melles,
Saharon Shelah,
Preview
|
PDF (775KB)
|
|
摘要:
A modelMof cardinality λ is said to have the small index property if for everyG⊆ Aut(M) such that [Aut(M) :G] ⩽ λ there is anA⊆Mwith |A|<λ such that AutA(M) ⊆G. We show that ifM*is a saturated model of an unsuperstable theory of cardinality greater thanTh(M), thenM*has the small index property.
ISSN:0024-6115
DOI:10.1112/plms/s3-69.3.449
出版商:Oxford University Press
年代:2016
数据来源: WILEY
|
2. |
Geodesic Multidimensional Continued Fractions |
|
Proceedings of the London Mathematical Society,
Volume s3-69,
Issue 3,
1994,
Page 464-488
J. C. Lagarias,
Preview
|
PDF (1655KB)
|
|
摘要:
A multidimensional continued fraction expansion is given which finds provably good Diophantine approximations for all θ∈Rd. For anyQ>1 it finds some approximation (p,q) ∈ Zd+1with 1 ⩽q⩽Qsatisfying ‖qθ−p‖ ⩽ √d+ 1Q−1/d. This expansion consists of a sequence of reduced lattice bases for a parametrized series of lattice bases Bt(θ) (of different lattices) in GL(d+ 1, R), where the positive real parametertvaries. This parametrized familyBt(θ) forms a geodesic in GL(d+ 1, R), and also projects to a geodesicgθin the Riemannian symmetric spacePd+1of all positive definite symmetric matrices. The multidimensional continued fraction expansion is a ‘cutting sequence’ expansion forgθusing a Minkowski fundamental domain of GL(d+ 1, Z)\Pd+1. This method generalizes to give continued fraction expansions finding good Diophantine approximations to an arbitrary set of linear forms.
ISSN:0024-6115
DOI:10.1112/plms/s3-69.3.464
出版商:Oxford University Press
年代:2016
数据来源: WILEY
|
3. |
On a Conjecture of Tate for Elliptic Surfaces Over Finite Fields |
|
Proceedings of the London Mathematical Society,
Volume s3-69,
Issue 3,
1994,
Page 489-514
M. L. Brown,
Preview
|
PDF (1435KB)
|
|
ISSN:0024-6115
DOI:10.1112/plms/s3-69.3.489
出版商:Oxford University Press
年代:2016
数据来源: WILEY
|
4. |
On restrictions of Irreducible Modular Representations of Semisimple Algebraic Groups and Symmetric Groups to Some Natural Subgroups, I |
|
Proceedings of the London Mathematical Society,
Volume s3-69,
Issue 3,
1994,
Page 515-540
Alexander S. Kleshchev,
Preview
|
PDF (1161KB)
|
|
ISSN:0024-6115
DOI:10.1112/plms/s3-69.3.515
出版商:Oxford University Press
年代:2016
数据来源: WILEY
|
5. |
Rigidity of Group Actions on Locally Finite Trees |
|
Proceedings of the London Mathematical Society,
Volume s3-69,
Issue 3,
1994,
Page 541-575
Hyman Bass,
Alexander Lubotzky,
Preview
|
PDF (2032KB)
|
|
ISSN:0024-6115
DOI:10.1112/plms/s3-69.3.541
出版商:Oxford University Press
年代:2016
数据来源: WILEY
|
6. |
Non‐Degenerately Ultraprime Jordan–Banach Algebras: A Zel'Manovian Treatment |
|
Proceedings of the London Mathematical Society,
Volume s3-69,
Issue 3,
1994,
Page 576-604
M. Cabrera García,
A. Rodríguez Palacios,
Preview
|
PDF (1925KB)
|
|
ISSN:0024-6115
DOI:10.1112/plms/s3-69.3.576
出版商:Oxford University Press
年代:2016
数据来源: WILEY
|
7. |
A Theory of Hardy Spaces Associated to the Herz Spaces |
|
Proceedings of the London Mathematical Society,
Volume s3-69,
Issue 3,
1994,
Page 605-628
José García‐Cuerva,
Mariá‐Jesús L. Herrero,
Preview
|
PDF (1221KB)
|
|
ISSN:0024-6115
DOI:10.1112/plms/s3-69.3.605
出版商:Oxford University Press
年代:2016
数据来源: WILEY
|
8. |
Abel Summability of Certain Series of Legendre Functions |
|
Proceedings of the London Mathematical Society,
Volume s3-69,
Issue 3,
1994,
Page 629-672
E. R. Love,
Preview
|
PDF (1815KB)
|
|
摘要:
A recent joint paper with M. N. Hunter contains convergence theory for some expansions of functions in bilateral series of Legendre functions. This paper contains convergence results for such series when the function expanded has a simple discontinuity at the point of expansion, a situation not previously covered. The method used is almost entirely different from that of the earlier paper; it proceeds via Abel summability and Littlewood's Tauberian Theorem.
ISSN:0024-6115
DOI:10.1112/plms/s3-69.3.629
出版商:Oxford University Press
年代:2016
数据来源: WILEY
|
9. |
Tables of Contents |
|
Proceedings of the London Mathematical Society,
Volume s3-69,
Issue 3,
1994,
Page -
Preview
|
PDF (738KB)
|
|
ISSN:0024-6115
DOI:10.1112/j.1460-244X.1994.tb00510.x
出版商:Oxford University Press
年代:1994
数据来源: WILEY
|