21,072 research outputs found
Cameron, C B, VX81605
No full textThis record was harvested from a previous catalogue system and will be withdrawn in 2025. Information in this record may be superseded or incomplete. Visit this record in UMA's new catalogue at: https://archives.library.unimelb.edu.au/nodes/view/375619Surname: CAMERON
Given Name(s) or Initials: C B
Military Service Number or Last Known Location: VX81605
Missing, Wounded and Prisoner of War Enquiry Card Index Number: 57041188320
Item: [2016.0049.07927] "Cameron, C B, VX81605
On base sizes for actions of finite classical groups
No full textLet G be a finite almost simple classical group and let
? be a faithful primitive non-standard G-set. A base for G is a subset B C_ ? whose pointwise stabilizer is trivial; we write b(G) for the minimal size of a base for G. A well-known conjecture of Cameron and Kantor asserts that there exists an absolute constant c such that b(G) ? c for all such groups G, and the existence of such an undetermined constant has been established by Liebeck and Shalev. In this paper we prove that either b(G) ? 4, or G = U6(2).2, G? = U4(3).22 and b(G) = 5.
The proof is probabilistic, using bounds on fixed point ratios
Base sizes for sporadic simple groups
No full textLet G be a permutation group acting on a set . A subset of is a base for G ifits pointwise stabilizer in G is trivial. We write b(G) for the minimal size of a base forG. We determine the precise value of b(G) for every primitive almost simple sporadicgroup G, with the exception of two cases involving the Baby Monster group. As acorollary, we deduce that b(G) 6 7, with equality if and only if G is the Mathieu groupM24 in its natural action on 24 points. This settles a conjecture of Cameron
Base sizes for simple groups and a conjecture of Cameron
No full textLet G be a permutation group on a finite set ?. A base for G is a subset B C_ ? whose pointwise stabilizer in G is trivial; we write b(G) for the smallest size of a base for G. In this paper we prove that b(G) ? if G is an almost simple group of exceptional Lie type and is a primitive faithful G-set. An important consequence
of this result, when combined with other recent work, is that b(G) ? 7 for any almost simple group G in a non-standard action, proving a conjecture of Cameron. The proof is probabilistic and uses bounds on fixed point ratios
Nitrogen-oxygen bond length/stretching frequency relationships in C-nitroso compounds and their coordination complexes
No full textThe mode of coordination of monomeric C-nitroso compds. to metals is discussed. In contrast to previous studies it is proposed that an understanding of the ν(N-O)/r(N-O) and r(C-N)/r(N-O) relationships in the noncoordinated nitroso compds. is of primary importance for assessment of the coordination mode. Both ν(N-O)/r(N-O) and r(C-N)/r(N-O) have linear interrelationships in C-nitroso compds. and the coordination compds. of RNO have the same ν(N-O)/r(N-O) relationship as the noncoordinated monomers. Previous correlations of Δν(N-O) with coordination mode are therefore correlations of r(N-O) with coordination mode. σ-N and σ-O complexes of arom. RNO conform to the same r(C-N)/r(N-O) equation (within a very small error) as the noncoordinated monomers. The extent of deviation from the r(C-N)/r(N-O) relationship for complexes of aliph. RNO is of a similar order of magnitude to that which occurs when C-nitroso monomers form the trans dimer. The coordination mode of aliph. RNO is, with one exception, σ-N. Nitrosobenzene has a variety of coordination modes to transition metals but does not display σ-O coordination. p-Nitrosodimethylaniline undergoes σ-O coordination to d10 metals
Cerceris yngvei CAMERON 1908
No full text<i>Cerceris yngvei</i> CAMERON, 1908 <p> <i>Cerceris yngvei</i> CAMERON, 1910: GIORDANI SOIKA 1939b: 102 (taxonomy, Adi Caiè).</p> <p>D i s t r i b u t i o n:AdiCaiè.</p> <p> <i>Cerceris yngvei</i> is also known from Burundi, Ethiopia, Tanzania and Zimbabwe.</p>Published as part of <i>Madl, Michael, C, Bembecinus, F, Bembix & C, Brachystegus, 2023, A catalogue of the family Crabronidae (Hymenoptera, Apoidea) of Eritrea, pp. 241-264 in Linzer biologische Beiträge 55 (1)</i> on page 258, DOI: <a href="http://zenodo.org/record/10787973">10.5281/zenodo.10787973</a>
Cerceris yngvei CAMERON 1908
No full text<i>Cerceris yngvei</i> CAMERON, 1908 <p> <i>Cerceris yngvei</i> CAMERON, 1910: GIORDANI SOIKA 1939b: 102 (taxonomy, Adi Caiè).</p> <p>D i s t r i b u t i o n:AdiCaiè.</p> <p> <i>Cerceris yngvei</i> is also known from Burundi, Ethiopia, Tanzania and Zimbabwe.</p>Published as part of <i>Madl, Michael, C, Bembecinus, F, Bembix & C, Brachystegus, 2023, A catalogue of the family Crabronidae (Hymenoptera, Apoidea) of Eritrea, pp. 241-264 in Linzer biologische Beiträge 55 (1)</i> on page 258, DOI: <a href="http://zenodo.org/record/10414738">10.5281/zenodo.10414738</a>
Dynamics of plane partitions: Proof of the Cameron and Fon-Der-Flaass conjecture
No full textOne of the oldest outstanding problems in dynamical algebraic combinatorics is the following conjecture of P. Cameron and D. Fon-Der-Flaass (1995): consider a plane partition P in an box . Let denote the smallest plane partition containing the minimal elements of . Then if is prime, Cameron and Fon-Der-Flaass conjectured that the cardinality of the -orbit of P is always a multiple of p. This conjecture was established for by Cameron and Fon-Der-Flaass (1995) and for slightly smaller values of p in work of K. Dilks, J. Striker and the second author (2017). Our main theorem specializes to prove this conjecture in full generality
Callichimaeridae Luque & Feldmann & Vernygora & Schweitzer & Cameron & Kerr & Vega & Duque & Strange & Palmer & Jaramillo 2019, fam. nov.
No full textCallichimaeridae fam. nov. LSID. urn:lsid:zoobank.org:act: A5D6688D-756B-4FB7-8098- 5EB066C38383 Included genus. Callichimaera gen. nov. Diagnosis. As for type genus and species.Published as part of Luque, J., Feldmann, R. M., Vernygora, O., Schweitzer, C. E., Cameron, C. B., Kerr, K. A., Vega, F. J., Duque, A., Strange, M., Palmer, A. R. & Jaramillo, C., 2019, Exceptional preservation of mid-Cretaceous marine arthropods and the evolution of novel forms via heterochrony, pp. 1-15 in Science Advances 5 (4) on page 3, DOI: 10.1126/sciadv.aav3875, http://zenodo.org/record/590278
Cerceris kilimandjaroensis CAMERON 1908
No full text<i>Cerceris kilimandjaroensis</i> CAMERON, 1908 <p> <i>Cerceris kilimandjaroensis</i> CAMERON, 1910: GIORDANI SOIKA 1939b: 102 (taxonomy, Adi Ugri, Assaorta).</p> <p> <i>Cerceris kilimandjaroensis</i> CAMERON, 1910: BOHART & MENKE 1976: 583 (world catalogue: Ethiopia including Eritrea).</p> <p>D i s t r i b u t i o n: Adi Ugri, Assaorta.</p> <p> <i>Cerceris kilimandjaroensis</i> is also known from Burundi, Democratic Republic of the Congo, Ethiopia, Tanzania and Zambia.</p>Published as part of <i>Madl, Michael, C, Bembecinus, F, Bembix & C, Brachystegus, 2023, A catalogue of the family Crabronidae (Hymenoptera, Apoidea) of Eritrea, pp. 241-264 in Linzer biologische Beiträge 55 (1)</i> on page 256, DOI: <a href="http://zenodo.org/record/10414738">10.5281/zenodo.10414738</a>
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