نتایج جستجو برای: ln l1
تعداد نتایج: 44432 فیلتر نتایج به سال:
The syntheses, structures, and characterization of four 3d-4f butterfly clusters are described. With different polyhydroxy Schiff-base ligands 2-(((2-hydroxy-3-methoxyphenyl)methylene)amino)-2-(hydroxymethyl)-1,3-propanediol (H4L1) and 2-(2,3-dihydroxpropyliminomethyl)-6-methoxyphenol (H3L2), three heterotetranuclear NiLn complexes (NiDy-L1 (1), NiTb-L2 (2), NiDy-L2 (3)) and one heterohexanucle...
Consider the hyperbolic system of conservation laws ut + F (u)x = 0. Let u be the unique viscosity solution with initial condition u(0, x) = ū(x), and let u be an approximate solution constructed by the Glimm scheme, corresponding to the mesh sizes ∆x, ∆t = O(∆x). With a suitable choice of the sampling sequence, we prove the estimate ∥∥uG(t, ·)− u(t, ·)∥∥ L1 = o(1) · √ ∆x ∣∣ ln(∆x)∣∣.
When n = 2, T is a Fourier multiplier, and it is well known that such operators are bounded on L, 1 < p < ∞, if m is a symbol of order 0. Coifman and Meyer [2]–[7], Kenig and Stein [14], and Grafakos and Torres [12] extended this result to the n > 2 case, showing that one had the mapping properties T : L1 × . . .× Ln−1 → Lpn (3) whenever 1 < pi ≤ ∞ (4) for i = 1, . . . , n− 1, 1/(n− 1) < pn <∞,...
Five-coordinate Cu(II) complexes, [Cu(Ln)X]ClO4/PF6, where Ln = piperazine ligands bearing two pyridyl arms and X ClO4? for L1 (1-ClO4), L2 (2-ClO4), L3 (3-ClO4), L6 (6-ClO4) as well [Cu(Ln)Cl]PF6 (1-Cl), L4 (4-Cl), L5 (5-Cl) have been synthesized characterized by spectroscopic techniques. The molecular structures of the last complexes were determined X-ray crystallography. In aqueous acetonitr...
Let S = {l1, l2, l3, . . . , ln} be a set of n vertical line segments in the plane. Though not essential, to simplify proofs we assume that no two li’s are on the same vertical line. A convex polygon weakly intersects S if it contains a point of each line segment on its boundary or interior. In this paper, we propose an O(n log n) algorithm for the problem of finding a minimum area convex polyg...
OBJECTIVE Lupus nephritis (LN) is a severe manifestation of systemic lupus erythematosus (SLE) that exhibits familial aggregation and may progress to end-stage renal disease (ESRD). LN is more prevalent among African Americans than among European Americans. This study was undertaken to investigate the hypothesis that the apolipoprotein L1 gene (APOL1) nephropathy risk alleles G1/G2, common in A...
This paper presents a novel application of answer set programming to concept learning in nonmonotonic logic programs. Given an extended logic program as a background theory, we introduce techniques for inducing new rules using answer sets of the program. The produced new rules explain positive/negative examples in the context of inductive logic programming. The result of this paper combines tec...
Let K be the field of real or complex numbers. Let (X ∼=K2n , ω) be a symplectic vector space and take 0<k<n,N =( 2n 2k ). Let L1, . . . , LN ⊂X be 2k-dimensional linear subspaces which are in a sufficiently general position. It is shown that if F :X −→X is a linear automorphism which preserves the form ωk on all subspaces L1, . . . , LN , then F is an k -symplectomorphism (that is, F ∗ω= kω, w...
ion Figure 4: The abstraction from some unimportant, peculiar properties of a physical system is going on in a flesh and blood formal system, namely, in a physical theory (L, S) describing the physical system in question physical objects. To compare physical systems, for example formal systems L1, L2, . . . Ln, we have to use a theory which is capable of describing all of L1, L2, . . . Ln. That...
The replacement of terminal benzimidazole-pyridine binding units in the neutral di-tridentate segmental ligand L1 with phenanthroline in L10 reduces the number of torsional degrees of freedom by two units. Reactions of these ligands with trivalent europium or lutetium cations yield structurally similar self-assembled dinuclear triple-stranded [Ln₂(Lk)₃]⁶⁺ complexes, thus demonstrating that the ...
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