Nef

Definitions

  • Webster's Revised Unabridged Dictionary
    • n Nef The nave of a church.
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Century Dictionary and Cyclopedia
    • n nef The nave of a church.
    • n nef An ornamental vessel used for the decoration of the table, having a form resembling a ship of the middle ages. Nefs were commonly pieces of valuable plate, and were set before the lord or master of the house, their use being to contain some of the table utensils especially appropriated to him, or sometimes to his guests. See cadenas.
    • n nef At the present day, a vessel of any unusual and fantastic shape resembling more or less closely a ship or boat.
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Chambers's Twentieth Century Dictionary
    • n Nef nef a cadenas.
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Etymology

Webster's Revised Unabridged Dictionary
F. See Nave

Usage

In literature:

I was maker von vagons in Carlsruhe, und I nef'r gedt home again.
"The Octopus" by Frank Norris
Il est la nef, il est le phare!
"The Idea of Progress" by J. B. Bury
Nef-aa-rut I. Ba-n-Ra Mi-neteru, more than 4 years.
"Early Israel and the Surrounding Nations" by Archibald Sayce
Nanna, the daughter of Nef.
"Ten Great Religions" by James Freeman Clarke
This ship was often known as the "nef," and frequently had a name, as if it were the family yacht!
"Arts and Crafts in the Middle Ages" by Julia De Wolf Addison
Venice also added 14 sailing ships of war, or "nefs," and Doria 22; these formed a special squadron.
"A History of Sea Power" by William Oliver Stevens and Allan Westcott
The former, however, was much more common, and the number of nefs that can be practically used as drinking cups is small.
"Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 7" by Various
Nw kvmath tha skednese fon nef Tuenis and sin nef Inka erost rjucht vppet pat.
"The Oera Linda Book" by Anonymous
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In news:

HIV-Nef and AIDS pathogenesis: are we barking up the wrong tree.
Viceroy Hotel Group announced that it has been selected as the operator of the new Nef Bebeköy development in Istanbul, Turkey.
Nef Wins World Cup Giant Slalom Title.
Sonja Nef of Switzerland won her fourth straight giant slalom yesterday in Cortina d'Ampezzo, Italy, to capture the World Cup title in the event.
Nef , Economic Historian At Chicago University, Dies at 89.
John Ulric Nef , an economic historian associated with the University of Chicago for more than half a century and founder of an elite interdisciplinary graduate department died Sunday at his home in Washington after a long illness.
Viceroy Hotel Group announced that it has been selected as the operator of the new Nef Bebeköy development in Istanbul, Turkey.
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In science:

Let (Y , M) be another model of (X, L) over B such that M is nef with respect to Y → B .
A note on polarizations of finitely generated fields
Let (X , L) be a model of (X, L) over B such that L is nef with respect to X → B .
A note on polarizations of finitely generated fields
Nef f = 3.36 for three light neutrino species.
A simple model of the hierarchical formation of galaxies
Assume that −A is f -nef and A− is very exceptional on Z .
On Zariski decomposition problem
Continuing the process we obtain a model X ′ on which the image D ′ of D is nef (in other words, we run “D-minimal model program”).
On Zariski decomposition problem
Since the divisor −D is nef over X ′ , we have N ≥ 0 (see Lemma 1.6).
On Zariski decomposition problem
Then for any nef divisor L such that L ≤ D we have L ≤ P (D).
On Zariski decomposition problem
Thus the question about finite generation of a divisorial algebra RX D can be reduced to the question about finite generation of the divisorial algebra RX P , where the divisor P is nef.
On Zariski decomposition problem
If the base locus Bs |nD | is bounded as n → ∞, then the divisor D is nef.
On Zariski decomposition problem
It is easy to show that the divisor D is effective modulo linear equivalence, nef and big.
On Zariski decomposition problem
Then the divisor Ps is nef and by Proposition 2.5 we have P ≥ Ps , where P = P (D) is the positive part of the classical Zariski decomposition.
On Zariski decomposition problem
The constructed map is a particular case of the Iitaka fibration of (X, D). (iv) (see also Proposition 3.7) Suppose that an R-Cartier divisor D is nef and big.
On Zariski decomposition problem
However, the converse is not always true: the divisor D from Example 3.9 is effective and nef but it is not bss-ample.
On Zariski decomposition problem
Then the contraction ϕ : X → P1 × P2 is a (unique) step of D-MMP and the divisor ϕ∗D is nef.
On Zariski decomposition problem
Hence the divisor Dm is nef and the rational 1-contraction α is a morphism.
On Zariski decomposition problem
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