Results 11 to 20 of about 63,567 (182)

Dynamic multi‐objective optimisation of complex networks based on evolutionary computation

open access: yesIET Networks, EarlyView., 2022
Abstract As the problems concerning the number of information to be optimised is increasing, the optimisation level is getting higher, the target information is more diversified, and the algorithms are becoming more complex; the traditional algorithms such as particle swarm and differential evolution are far from being able to deal with this situation ...
Linfeng Huang
wiley   +1 more source

On the structure of composite odd integer and prime numbers

open access: yesRatio Mathematica, 2023
With the expression ''structure of an odd integer'' we mean the set of properties of the integer n which specifies the odd integer 2n+1 and brings about its behaviour.
Giuseppe Buffoni
doaj   +1 more source

Divisors on graphs, Connected flags, and Syzygies [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2013
We study the binomial and monomial ideals arising from linear equivalence of divisors on graphs from the point of view of Gröbner theory. We give an explicit description of a minimal Gröbner basis for each higher syzygy module.
Fatemeh Mohammadi, Farbod Shokrieh
doaj   +1 more source

Rational Divisors in Rational Divisor Classes [PDF]

open access: yes, 2004
We discuss the situation where a curve \(\mathcal{C}\), defined over a number field K, has a known K-rational divisor class of degree 1, and consider whether this class contains an actual K-rational divisor. When \(\mathcal{C}\) has points everywhere locally, the local to global principle of the Brauer group gives the existence of such a divisor.
Bruin, N, Flynn, E
openaire   +3 more sources

INCIDENCE DIVISOR

open access: yesInternational Journal of Mathematics, 2003
Let Z be a complex manifold of dimension n+1 and (Xs)s∈S be an analytic family of n-cycles (not necessarily compact) parametrized by a reduced analytic complex space S. Denote by X the graph of this family and p1 (resp. p2) the canonical projection of S × Z on S (resp. on Z).
Barlet, D., Kaddar, M.
openaire   +3 more sources

Algebraic bounds on analytic multiplier ideals [PDF]

open access: yes, 2013
Given a pseudo-effective divisor L we construct the diminished ideal of L, a "continuous" extension of the asymptotic multiplier ideal for big divisors to the pseudo-effective boundary.
Lehmann, Brian
core   +2 more sources

GENERALIZATION OF THE DIVISOR PRODUCTS AND PROPER DIVISOR PRODUCTS SEQUENCES [PDF]

open access: yes, 2006
Let n be a positive integer, pd(n) denotes the product of all positive divisors of n, qd(n) denotes the product of all proper divisors of ...
Fangchi, Liang
core   +1 more source

Restricted volumes of effective divisors [PDF]

open access: yes, 2012
We study the restricted volume of effective divisors, its properties and the relationship with the related notion of reduced volume, defined via multiplier ideals, and with the asymptotic intersection number.
Biagio, Gianluca Pacienza, Lorenzo Di
core   +1 more source

Superpotentials from singular divisors

open access: yesJournal of High Energy Physics, 2022
We study Euclidean D3-branes wrapping divisors D in Calabi-Yau orientifold compactifications of type IIB string theory. Witten’s counting of fermion zero modes in terms of the cohomology of the structure sheaf O D $$ {\mathcal{O}}_D $$ applies when D is ...
Naomi Gendler   +4 more
doaj   +1 more source

ON THE DIVISOR PRODUCTS AND PROPER DIVISOR PRODUCTS SEQUENCES [PDF]

open access: yes, 1996
Let n be a positive integer, Pd(n) denotes the product of all positive divisors of n, qd(n) denotes the product of all proper divisors of ...
Liu, HONGYAN, WENPENG, ZHANG
core   +1 more source

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