Correction to a Theorem on Total Positivity

2006 ◽  
Vol 49 (2) ◽  
pp. 281-284
Author(s):  
Carl Johan Ragnarsson ◽  
Wesley Wai Suen ◽  
David G. Wagner

AbstractA well-known theorem states that if f (z) generates a PFr sequence then 1/f(–z) generates a PFr sequence. We give two counterexamples which show that this is not true, and give a correct version of the theorem. In the infinite limit the result is sound: if f(z) generates a PF sequence then 1/f(–z) generates a PF sequence.

2019 ◽  
Author(s):  
vernon thornton

A description of of the mind and its relationship to the brain, set in an evolutionary context. Introduction of a correct version of 'language-of-thought' called 'thinkish'.


2008 ◽  
Vol 57 (6) ◽  
pp. 963-963
Author(s):  
D. Devaney ◽  
A. R. Godley ◽  
M. E. Hodson ◽  
K. Purdy ◽  
S. Yamulki

Unfortunately an incorrect version of Figure 4 appears on p517 of this paper; the correct version is as printed below. A sentence (“Increased N2O emissions…. Conversely”) should then also be deleted from the corresponding paragraph of the main text as printed on pp516–517; the correct version of this paragraph is also given below. The authors and publisher regret any confusion or inconvenience this may have caused.


2021 ◽  
Vol 2021 (2) ◽  
Author(s):  
C. Giunti ◽  
A. Ioannisian ◽  
G. Ranucci

After publication we discovered that some entries in table 2 and the corresponding contours in figures 3 and 4 have been misprinted. We provide here the correct version of table 2 and figures 3 and 4. The discussion and conclusions in the text of the paper remain unchanged.


2000 ◽  
Vol 22 (1) ◽  
pp. 23-33 ◽  
Author(s):  
Sergey Fomin ◽  
Andrei Zelevinsky
Keyword(s):  

1998 ◽  
Vol 271 (1-3) ◽  
pp. 257-272 ◽  
Author(s):  
G.M.L. Gladwell

2021 ◽  
Vol 2 (1) ◽  
pp. 117-130
Author(s):  
M. Mogoboya

The story of African liberation struggle has, over many years, been related in a colonial and neo-colonial manner by the imperial powers, with Africa delineated as a dark continent and Europe as a civilised one. This article, therefore, strives to disrupt this oppressive narrative by painting the correct version through Ngugi's A Grain of Wheat (1967) (AGW) and Matigari (1987). Kenya is used as a microcosm of the entire Africa in these novels. Furthermore, the study is a qualitative recounting of the African liberation struggle which is underpinned by Afrocentricity as an emancipatory theoretical strand. Purposive sampling, guided by exploratory research design, was employed to select the two texts by Ngugi because of their appositeness to the study. Narrative textual analysis was used to interpret the two novels as primary data. Ngugi conscientises Africans about their African liberation history in order for them to cultivate a true African identity (Biko,1978).


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