1. |
An Intersection Theorem for a Collection of Families of Subsets of a Finite Set |
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Journal of the London Mathematical Society,
Volume s2-15,
Issue 3,
2016,
Page 369-376
A. J. W. Hilton,
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ISSN:0024-6107
DOI:10.1112/jlms/s2-15.3.369
出版商:Oxford University Press
年代:2016
数据来源: WILEY
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2. |
Antipodal Embeddings of Graphs |
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Journal of the London Mathematical Society,
Volume s2-15,
Issue 3,
2016,
Page 377-383
M. Farzan,
D. A. Waller,
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摘要:
An antipodal graphDof diameterdhas the property that each vertex υ has a unique (antipodal) vertex υ at distancedfrom υ inD. We show that any suchDhas circuits of length 2dpassing through antipodal pairs of vertices. The identification of antipodal vertex‐pairs inDproduces a quotient graphGwith a double cover projection morphismp:D→G. Using the two‐fold quotient map of surfaces π :S2→RP2where the real projective plane is obtained from the sphere, we study the relation between embeddings of a planar graph inS2and embeddings ofGinRP2. In particular, our main theorem establishes that every planar antipodal graphDhas an embedding inS2such thatpis a restriction of the projection π.
ISSN:0024-6107
DOI:10.1112/jlms/s2-15.3.377
出版商:Oxford University Press
年代:2016
数据来源: WILEY
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3. |
A Criterion for Modularity of Certain Lattices |
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Journal of the London Mathematical Society,
Volume s2-15,
Issue 3,
2016,
Page 384-386
Gerhard Janssen,
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ISSN:0024-6107
DOI:10.1112/jlms/s2-15.3.384
出版商:Oxford University Press
年代:2016
数据来源: WILEY
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4. |
Complete Atomic Boolean Lattices |
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Journal of the London Mathematical Society,
Volume s2-15,
Issue 3,
2016,
Page 387-390
M. S. Lambrou,
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ISSN:0024-6107
DOI:10.1112/jlms/s2-15.3.387
出版商:Oxford University Press
年代:2016
数据来源: WILEY
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5. |
On Birkhoff's Postulates for a Relation Algebra |
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Journal of the London Mathematical Society,
Volume s2-15,
Issue 3,
2016,
Page 391-394
Chris Brink,
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ISSN:0024-6107
DOI:10.1112/jlms/s2-15.3.391
出版商:Oxford University Press
年代:2016
数据来源: WILEY
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6. |
Onp‐AdlcG‐Functions |
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Journal of the London Mathematical Society,
Volume s2-15,
Issue 3,
2016,
Page 395-402
Yuval Z. Flicker,
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ISSN:0024-6107
DOI:10.1112/jlms/s2-15.3.395
出版商:Oxford University Press
年代:2016
数据来源: WILEY
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7. |
Nonbases of Density Zero not Contained in Maximal Nonbases |
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Journal of the London Mathematical Society,
Volume s2-15,
Issue 3,
2016,
Page 403-405
Paul Erdős,
Melvyn B. Nathanson,
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摘要:
A sequenceA= {ai} of non‐negative integers is a basis if every sufficiently large integerncan be written in the formn=ai+ajwithai,aj∈A. IfAis not a basis, thenAis called a nonbasis. The nonbasisAis maximal ifA∪ {b} is a basis for everyb€A. We construct a nonbasisAof density zero, in particular, withA(x) =O(√x), such thatAcannot be imbedded as a subset of any maximal nonbasis.
ISSN:0024-6107
DOI:10.1112/jlms/s2-15.3.403
出版商:Oxford University Press
年代:2016
数据来源: WILEY
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8. |
A Generalization of the Artin‐Procesi Theorem |
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Journal of the London Mathematical Society,
Volume s2-15,
Issue 3,
2016,
Page 406-408
George Szeto,
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摘要:
The Artin‐Procesi theorem is generalized by removing the hypothesis on the rank of an Azumaya algebra.
ISSN:0024-6107
DOI:10.1112/jlms/s2-15.3.406
出版商:Oxford University Press
年代:2016
数据来源: WILEY
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9. |
A Note on Cocycle Twisted Rings of Differential Operators |
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Journal of the London Mathematical Society,
Volume s2-15,
Issue 3,
2016,
Page 409-414
J. M. McNaughton,
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ISSN:0024-6107
DOI:10.1112/jlms/s2-15.3.409
出版商:Oxford University Press
年代:2016
数据来源: WILEY
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10. |
A Note on the Dimensions of Commutative Noetherian Domains |
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Journal of the London Mathematical Society,
Volume s2-15,
Issue 3,
2016,
Page 415-418
Rodney Y. Sharp,
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ISSN:0024-6107
DOI:10.1112/jlms/s2-15.3.415
出版商:Oxford University Press
年代:2016
数据来源: WILEY
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