Results 31 to 40 of about 272,169 (104)

Universal deformation rings for the symmetric group S_4

open access: yes, 2008
Let k be an algebraically closed field of characteristic 2, and let W be the ring of infinite Witt vectors over k. Let S_4 denote the symmetric group on 4 letters.
A. Wiles   +18 more
core   +1 more source

survey effect of illuminance source on alertness in a laboratory design

open access: yesSalāmat-i kār-i Īrān, 2019
Background and aims: Workplaces with poor lighting conditions often created occupational accidents or illness. This occurs because light cause visual and nonvisual effects on numerous physiological variables, such as the human sleep-wake cycle and ...
behzad fouladi   +4 more
doaj  

GRBs and SGRs as precessing gamma jets

open access: yes, 1998
The GRB980425-SN1998bw association put in severe strain and contradiction the simplest "candle" fireball model for GRBs. We probed that statistically the association is reliable, the energy luminosity and probability puzzles between cosmic and near by ...
Fargion, Daniele
core   +3 more sources

Testing the No-Hair Theorem with Observations in the Electromagnetic Spectrum: II. Black-Hole Images

open access: yes, 2010
According to the no-hair theorem, all astrophysical black holes are fully described by their masses and spins. This theorem can be tested observationally by measuring (at least) three different multipole moments of the spacetimes of black holes.
Agol   +38 more
core   +1 more source

Three lectures on Cox rings [PDF]

open access: yes, 2011
Notes of an introductory course given at the conference "Torsors: Theory and Applications" in Edinburgh, January 2011.Comment: Minor corrections, 37 ...
Hausen, Juergen
core  

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