Results 11 to 20 of about 63,706 (205)
Dynamic multi‐objective optimisation of complex networks based on evolutionary computation
IET 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
Ratio 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]
Discrete 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]
, 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
International 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
Extremal divisors on moduli spaces of rational curves with marked points [PDF]
, 2016 We study effective divisors on $\overline{M}_{0,n}$, focusing on hypertree divisors introduced by Castravet and Tevelev and the proper transforms of divisors on $\overline{M}_{1,n-2}$ introduced by Chen and Coskun. Results include a database of hypertree
Opie, Morgan
core +1 more source
Superpotentials from singular divisors
Journal 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
Algebraic bounds on analytic multiplier ideals [PDF]
, 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
Restricted volumes of effective divisors [PDF]
, 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
Determination of the biquaternion divisors of zero, including the idempotents and nilpotents [PDF]
, 2008 The biquaternion (complexified quaternion) algebra contains idempotents (elements whose square remains unchanged) and nilpotents (elements whose square vanishes). It also contains divisors of zero (elements with vanishing norm).
Alfsmann, Daniel, Sangwine, Stephen J.
core +2 more sources