Results 1 to 10 of about 845,918 (219)

Conjugates in division rings [PDF]

open access: bronzeProceedings of the American Mathematical Society, 1956
1. I. Heller, The travelling salesman's problem I, George Washington University, Logistics Research Project Report, 1954, 88 pp. 2. E. G. Straus, Functions periodic modulo each of a sequence of integers, Duke Math. J. vol. 19 (1952) pp. 379-395. 3. F. Supnick, On the dense packing of spheres, Trans. Amer. Math. Soc. vol. 65 (1949) pp. 14-26.
I. N. Herstein
  +5 more sources

In vitro assembly, positioning and contraction of a division ring in minimal cells [PDF]

open access: yesNature Communications, 2022
Constructing a minimal protein machinery for self-division of membrane compartments is a major goal of bottom-up synthetic biology. Here, authors achieved the assembly, placement and onset of contraction of a minimal division ring in lipid vesicles.
Shunshi Kohyama   +2 more
doaj   +2 more sources

On the Galois theory of division rings [PDF]

open access: bronzeProceedings of the American Mathematical Society, 1959
1. Throughout this paper, K will represent a division ring and L a galois division subring. We are interested in establishing a galois theory for the extension K/L when K/L is locally finite. In order to do this one must identify the galois subrings of K containing L. An example given by Jacobson [4] shows that not every such division subring is galois.
John H. Walter
openalex   +3 more sources

Division hypernear-rings

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2018
This paper is a continuation of our work on hypernear-rings with a defect of distributivity D. In particular, here we introduce and study a new subclass of hypernear-rings, called D-division hypernear-rings, establishing a necessary and sufficient ...
Jančić-Rašović Sanja, Cristea Irina
doaj   +3 more sources

On Conjugates in Division Rings [PDF]

open access: bronzeCanadian Journal of Mathematics, 1958
Let D be a non-commutative division ring with centre C, and let Δ be a proper division subring not contained in C. In (4) Cartan raised the question: is it ever possible for each inner automorphism of D to induce an automorphism of Δ?
Carl Faith
openalex   +3 more sources

Cell division protein CdpA organises and anchors the midcell ring in haloarchaea [PDF]

open access: yesNature Communications
Many archaea appear to divide through the coordinated activities of two FtsZ homologues (FtsZ1 and FtsZ2) and another bacterial cell division homologue (SepF), which are part of the midcell division ring. Here, we identify an additional protein (HVO_0739,
Yan Liao   +6 more
doaj   +2 more sources

Minimization of the Bacillus subtilis divisome suggests FtsZ and SepF can form an active Z-ring, and reveals the amino acid transporter BraB as a new cell division influencing factor. [PDF]

open access: yesPLoS Genetics
Bacterial cytokinesis begins with polymerization of the tubulin homologue FtsZ into a ring-like structure at midcell, the Z-ring, which recruits the late cell division proteins that synthesize the division septum.
Ilkay Celik Gulsoy   +6 more
doaj   +2 more sources

The structure of alternative division rings [PDF]

open access: bronzeProceedings of the American Mathematical Society, 1951
R. H. Bruck, Erwin Kleinfeld
openalex   +5 more sources

Supersimple fields and division rings [PDF]

open access: greenMathematical Research Letters, 1998
It is proved that any supersimple field has trivial Brauer group, and more generally that any supersimple division ring is commutative. As prerequisites we prove several results about generic types in groups and fields whose theory is simple.
Anthony L. Pillay   +2 more
openalex   +4 more sources

On derivations in division rings [PDF]

open access: bronzePacific Journal of Mathematics, 1960
Morris Weisfeld
openalex   +4 more sources

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