نتایج جستجو برای: ln (l1

تعداد نتایج: 44432  

Journal: :Indagationes Mathematicae 2022

Let (Ln)n≥1 be the sequence of Lucas numbers, defined recursively by L1≔1, L2≔3, and Ln+2≔Ln+1+Ln, for every integer n≥1. We determine asymptotic behavior loglcm(L1+s1,L2+s2,…,Ln+sn) as n→+∞, (sn)n≥1 a periodic in {−1,+1}. also carry out same analysis independent uniformly distributed random variables These results are numbers-analogs previous obtained author Fibonacci numbers.

Journal: :Dalton transactions 2012
Soumaila Zebret Nathalie Dupont Céline Besnard Gérald Bernardinelli Josef Hamacek

This contribution investigates Ln(III) complexes formed with a small ditopic ligand, L1, and their structural, thermodynamic and photophysical properties. The spectrophotometric and NMR titrations evidence the triangular assemblies [Ln(3)(L1-H)(3)](6+) at stoichiometric conditions and their properties are discussed in relation to L2-containing analogues. In addition, the dinuclear species, [Ln(...

2015
A. Marijne Heeren Eline de Boer Maaike C.G. Bleeker René J.P. Musters Marrije R. Buist Gemma G. Kenter Tanja D. de Gruijl Ekaterina S. Jordanova

In cervical cancer, high frequencies of regulatory T cells (Tregs) and immunosuppressive PD-L1+CD14+ antigen-presenting cells dominate the microenvironment of tumor-positive lymph nodes (LN+). It is unknown whether this is restricted to LN+ or precedes metastasis, emanating from the primary tumor and spreading through tumor-draining lymph nodes (TDLNs). To investigate immunosuppression in the l...

2006
M. FARBER A. A. Klyachko

In this paper we study topology of the variety of closed planar n-gons with given side lengths l1, . . . , ln. The moduli space M` where ` = (l1, . . . , ln), encodes the shapes of all such n-gons. We describe the Betti numbers of the moduli spaces M` as functions of the length vector ` = (l1, . . . , ln). We also find sharp upper bounds on the sum of Betti numbers of M` depending only on the n...

2016
GOU NAKAMURA TOSHIHIRO NAKANISHI Mika Seppälä

We give a set of trace functions which give a global parametrization of the Teichmüller space T (g, n)(L1, . . . , Ln) of hyperbolic surfaces of genus g with n geodesic boundary components of lengths L1,. . . , Ln such that the action of the mapping class group on the Teichmüller space can be represented by rational transformations in the parameters.

2018
Hyo Jung An Gyung Hyuck Ko Jeong-Hee Lee Jong Sil Lee Dong Chul Kim Jung Wook Yang Min Hye Kim Jin Pyeong Kim Eun Jung Jung Dae Hyun Song

BACKGROUND The immunotherapeutic role of programmed death-ligand 1 (PD-L1) in life expectancy in many cancers has been highlighted. However, data regarding PD-L1 expression in papillary thyroid carcinoma (PTC) are limited. In this study, we describe the PD-L1 and programmed cell death protein 1 (PD-1) expressions in PTC and analyze their correlation with lymph node (LN) metastasis. METHODS Cl...

1996
Pieter Moree

The density of primes dividing at least one term of the Lucas sequence defined by L0(P) = 2, L1(P)= P and Ln(P) = PLn-1(P) + Ln-2(P) for n ~ 2, with P an arbitrary integer, is determined.

2006
K. Walker A. A. Klyachko

In this paper we study topology of the variety of closed pla-nar n-gons with given side lengths l1,. .. , ln. The moduli space M ℓ where ℓ = (l1,. .. , ln), encodes the shapes of all such n-gons. We describe the Betti numbers of the moduli spaces M ℓ as functions of the length vector ℓ = (l1,. .. , ln). We also find sharp upper bounds on the sum of Betti numbers of M ℓ depending only on the num...

Journal: :Dalton transactions 2013
Cheng-Hui Zeng Fu-Li Zhao Yang-Yi Yang Ming-Yuan Xie Xue-Mei Ding De-Jian Hou Seik Weng Ng

A "basophilic method" for phenolic hydroxyl bridged lanthanide coordination polymers (CPs) was developed. With this method, eleven CPs with the general formula of [Ln(HL1)L1·H(2)O](n) (Ln = Tb (1), Nd (2), Eu (3), Gd (4), La (5), Er (6), Y (7), H(2)L1 = 4-methyl salicylic acid) and [Ln(HL2)L2·2MeOH](n) (Ln = Eu (8), Tb (9), Gd (10), La (11), H(2)L2 = 3-hydroxy-2-naphthoic acid) were synthesized...

2003
JIANMING YU GUANGFENG JIANG

We present a Zariski pair in affine complex plane consisting of two line arrangements, each of which has six lines. In the seminal paper [3], Zariski started the study of the fundamental groups of the complements of plane algebraic curves. Among other things, he constructed a pair of plane curves with the same degree and the same local singularities, but non-isomorphic fundamental groups, which...

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