نتایج جستجو برای: shear wave splitting
تعداد نتایج: 311215 فیلتر نتایج به سال:
Let G be a finitely presented group. Scott and Swarup have constructed a canonical splitting of G which encloses all almost invariant sets over virtually polycyclic subgroups of a given length. We give an alternative construction of this regular neighbourhood, by showing that it is the tree of cylinders of a JSJ splitting.
Teacher: Can you solve this problem? (Gives student paper with 4 – 1 8 written at the top.) Student: (Writes 3 8 as answer). Three-eighths. I subtracted 1 from 4, and then kept the denominator, 8, the same. Teacher: Suppose you had four large brownies and you ate one eighth of one brownie. How many brownies would you have left? Student: (Pauses, then draws four rectangles, partitions one of the...
We explain a simple strategy to establish analytic regularity for solutions of second order linear elliptic boundary value problems. The abstract framework presented here helps to understand the proof of analytic regularity in polyhedral domains given in the authors’ paper in Math. Models Methods Appl. Sci. 22 (8) (2012). We illustrate this strategy by considering problems set in smooth domains...
We study the absorption of a class of fields in the geometry produced by extremal three-branes. We consider fields that do not mix with the ten-dimensional graviton. For these fields we solve the wave equations and find the absorption probabilities for all partial waves at leading order in the energy. We note that in some of these cases one needs an ‘intermediate’ region which interpolates betw...
define minimal \;01un:lal:ne'IlLS, In contrast with [8),
We present the results of searches for gravitational waves from a large selection of pulsars using data from the most recent science runs (S6, VSR2 and VSR4) of the initial generation of interferometric gravitational wave detectors LIGO (Laser Interferometric Gravitational-wave Observatory) and Virgo. We do not see evidence for gravitational wave emission from any of the targeted sources but pr...
Two novel resorcinol derivatives were isolated from the mycelium of Lasiodiplodia theo bromae IFO 31059 as potato micro-tuber inducing compounds. Their structures were estab lished by spectroscopic methods as ethyl (6 ' 7?)-2,4-dihydroxy-6-(6'-hydroxyheptyl)benzoate (8) and isobutyl (6 ' /?)-2.4-dihydroxy-6-(6'-hydroxyheptyl)benzoate (9). The absolute stereo chemistry of the asymmetric cente...
We use the theory of tunnel number 1 knots introduced in [5] to strengthen the Tunnel Leveling Theorem of Goda, Scharlemann, and Thompson. This yields considerable information about bridge numbers of tunnel number 1 knots. In particular, we calculate the minimum bridge number of a knot as a function of the maximum depth invariant d of its tunnels. The growth of this value is on the order of (1 ...
We present tight bounds on splitting trees into “small” subtrees.
A set X of vertices of a graph G is said to be 1-dependent if the subgraph of G induced by X has maximum degree one. The 1-dependent Ramsey number t1(l, m) is the smallest integer n such that for any 2-edge colouring (R, B) of Kn, the spanning subgraph B of Kn has a 1-dependent set of size l or the subgraph R has a 1-dependent set of size m. The 2-edge colouring (R, B) is a t1(l, m) Ramsey colo...
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