Results 1 to 10 of about 12,663,351 (362)
Lower central series of Baumslag–Solitar groups [PDF]
Algebra i logika, 2020 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Bardakov, V. G., Neshchadim, M. V.
openaire +3 more sources
Filtrations of free groups arising from the lower central series [PDF]
, 2016 We make a systematic study of filtrations of a free group F defined as products of powers of the lower central series of F. Under some assumptions on the exponents, we characterize these filtrations in terms of the group algebra, the Magnus algebra of ...
Michael Chapman, Ido Efrat
openalex +3 more sources
Temporal variations of trends in the Central England Temperature series
Cuadernos de Investigación Geográfica, 2020 Variations in trend rates of annual values of the Central England Temperature series (CET) over the period1659-2017 were analysed using moving windows of different length, to identify the minimum period in which the trend expresses a climate signal not ...
J.C. González-Hidalgo +2 more
doaj +3 more sources
On the Central Series of a Ring [PDF]
Canadian Mathematical Bulletin, 1973 The study of group types was completed by Meldrum [1]. The concept of ring type described here is based on analogous definitions.The series R = R0 ⊃ R1 ⊃ … ⊃ Rα = Rα+1is the lower central series for the ring R if Rγ+1=RRγ + RγR for ordinal number γ and Rγ∩δ<γ Rδ if γ is a limit ordinal. The upper central series for R is the series 0=J0 ⊂ J1 ⊂ … ⊂jβ =
Rory Biggs
openalex +3 more sources
On the length of the shortest non-trivial element in the derived and the lower central series [PDF]
, 2015 We provide upper and lower bounds on the length of the shortest non-trivial element in the derived series and lower central series in the free group on two generators.
Abdelrhman Elkasapy, Andreas Thom
openalex +3 more sources
Complications of Central Venous Line Insertion: A Case Series
Journal of Nepal Medical AssociationCentral venous catheter (CVC) insertion is a commonly performed procedure in critically ill patients. While generally safe, it carries risks of potentially serious complications, particularly when performed without ultrasound guidance or in emergent ...
Saurav Shrestha +2 more
doaj +3 more sources
The lower central series and pseudo-Anosov dilatations [PDF]
, 2006 The theme of this paper is that algebraic complexity implies dynamical complexity for pseudo-Anosov homeomorphisms of a closed surface $S_g$ of genus $g$.
Benson Farb +2 more
openalex +2 more sources
Infinite series about harmonic numbers inspired by Ramanujan–like formulae
Electronic Research Archive, 2023 By employing the coefficient extraction method from hypergeometric series, we shall establish numerous closed form evaluations for infinite series containing central binomial coefficients and harmonic numbers, including several conjectured ones made by Z.
Chunli Li, Wenchang Chu
doaj +1 more source
Melanocytic lesions of the central nervous system: a case series [PDF]
Arquivos de Neuro-Psiquiatria, 2022 Background: Melanocytic lesions of the central nervous system (CNS) are an infrequent, broad and diverse group of entities, both benign and malignant, found in all age groups, with imaging findings ranging from well-circumscribed focal lesions to ...
Jorge VARELA-POBLETE +4 more
doaj +1 more source
Time series modeling of Monkeypox incidence in Central Africa’s endemic regions
Machine Learning with ApplicationsMonkeypox is a re-emerging zoonotic viral disease endemic to the Democratic Republic of Congo (DRC) and other Central African countries, with recurrent outbreaks posing persistent public health threats. Accurate short-term forecasts of Mpox incidence are
Chidozie Williams Chukwu +5 more
doaj +2 more sources