作者: Acetabulum 時間: 2025-3-21 23:31
Book 2009In contrast to the Monge-Kantorovitch problem, recent approaches model the branched structure of such supply networks as minima of an energy functional whose essential feature is to favour wide roads. Such a branched structure is observable in ground transportation networks, in draining and irrigati作者: 小平面 時間: 2025-3-22 04:27
0075-8434 n measure into another with the same mass. In contrast to the Monge-Kantorovitch problem, recent approaches model the branched structure of such supply networks as minima of an energy functional whose essential feature is to favour wide roads. Such a branched structure is observable in ground transp作者: cogitate 時間: 2025-3-22 08:06 作者: 愛好 時間: 2025-3-22 12:19
Operations on Traffic Plans,tandard way to explicitly construct infinite irrigation trees, or patterns. Incidentally three elementary assumptions will be justified by their lack of incidence on the search of optimal traffic plans: X can be taken convex, the mass of χ can always be taken equal to one, and we can get rid of zero-length fibers.作者: Mirage 時間: 2025-3-22 13:24 作者: Exaggerate 時間: 2025-3-22 18:52 作者: 拋射物 時間: 2025-3-23 00:28 作者: 誹謗 時間: 2025-3-23 04:05
The Equivalence of Various Models, et al. . model [59]. Finally Section 9.3 treats the equivalence between traffic plans and Xia’s .. In all cases the equivalence is strong, as not only the minimal energies are the same but the minimizing objects, of very diverse nature, can be identified with each other. The presentation here follows [13]. Several tools come from [58] and [70].作者: 減震 時間: 2025-3-23 08:31
978-3-540-69314-7Springer-Verlag Berlin Heidelberg 2009作者: Headstrong 時間: 2025-3-23 11:02 作者: oxidize 時間: 2025-3-23 14:40 作者: obeisance 時間: 2025-3-23 20:40 作者: 混雜人 時間: 2025-3-24 01:28 作者: Cryptic 時間: 2025-3-24 05:35
Open Problems,Problem 15.1. Let . be a sequence of optimal traffic plans such that . is uniformly bounded and . converges to χ. Is χ optimal?作者: lanugo 時間: 2025-3-24 08:03 作者: 單純 時間: 2025-3-24 11:03
The Tree Structure of Optimal Traffic Plans and their Approximation, point. The presentation here is inspired from [13]. Several techniques come from papers by Xia [94] and Maddalena-Solimini [58]. The proof of the bi-Lipschitz regularity of fibers with positive flow follows [95] and the pruning and theorem is borrowed from Devillanova and Solimini [79]. The monoton作者: invert 時間: 2025-3-24 17:42
Irrigability and Dimension, happens if α is critical? Corollary 10.16 gives the answer: if any probability measure μ with a bounded supports is α-irrigable, then α>1/.. Thus the .-dimensional Lebesgue measure is not 1?1/. irrigable. Here the presentation and results follow closely Devillanova’s PhD [28] and Devillanova-Solimi作者: Generosity 時間: 2025-3-24 22:24
The Landscape of an Optimal Pattern, be defined as a path integral along the network from the source to .. does not depend on the path but only on .. Section 11.4 is devoted to a general semicontinuity property of . and Section 11.5 to its H?lder continuity when the irrigated measure dominates Lebesgue on .. The whole chapter follows 作者: pineal-gland 時間: 2025-3-25 01:54
The Gilbert-Steiner Problem,n Gilbert’s article, yet without proof. In the second section, we generalize the construction already made for two masses to any number of masses. More precisely, if we prescribe a particular topology of a tree irrigating . masses from a Dirac mass, we describe a recursive procedure that permits to 作者: 哀悼 時間: 2025-3-25 04:38
Dirac to Lebesgue Segment: A Case Study,ure). Indeed, we prove by a perturbation argument that there exists a traffic plan with a .—structure that has a lower cost than the .—structure one. This implies that there have to be an infinite number of bifurcations (see Corollary 13.11). Indeed, if there were a finite number of bifurcations, we作者: 把手 時間: 2025-3-25 11:14
Application: Embedded Irrigation Networks,er of the tubes and this parameter changes the energy. By making the tube diameters tend to infinity we can even let the dissipated energy tend to zero. Of course embedded irrigation circuits cannot occupy the whole space and their volume must be constrained, unless we only grow lentils. Section 14.作者: 反復(fù)無常 時間: 2025-3-25 13:23
0075-8434 and transportation models is discussed. It will be mathematically proven that the majority fit in the simple model sketched in this volume..978-3-540-69314-7978-3-540-69315-4Series ISSN 0075-8434 Series E-ISSN 1617-9692 作者: SLAG 時間: 2025-3-25 19:54
h im Jahr 2000 der Marketingdirektor der New Yorker Philharmoniker, dass in der ganzen Stadt nur zwei Musiklehrer an ?ffentlichen Schulen besch?ftigt seien.. Kulturelle Bildung hat aber in den letzten zehn Jahren wieder an Bedeutung gewonnen. Trotzdem sahen sich die Orchester vor der Herausforderung作者: Hamper 時間: 2025-3-25 20:28
tsvielfalt entstanden ist. Der Ruf nach einem besonderen Schutz dieser Orchesterlandschaft als UNESCO-Weltkulturerbe kommt nicht von ungef?hr.. Fluch, weil der Unterhalt von Orchestern Kosten verursacht und die ?ffentlichen Haushalte in über proportional steigendem Ma?e belastet.. Sp? testens seit B作者: Rustproof 時間: 2025-3-26 03:59 作者: ungainly 時間: 2025-3-26 07:23
The Mathematical Models,monge-Kantorovich model. Section 2.2 describes the Gilbert-Steiner discrete irrigation model. Section 2.3 is devoted to the notation of the three continuous mathematical models (transport paths, patterns and traffic plans). Section 2.4.1 lists the mathematical questions and tells where they will be 作者: climax 時間: 2025-3-26 12:27 作者: Limerick 時間: 2025-3-26 15:12 作者: GRIEF 時間: 2025-3-26 20:13
Operations on Traffic Plans,riction, concatenation, union, and hierarchical concatenation. These technical tools were introduced in [13]. The hierarchical concatenation gives a standard way to explicitly construct infinite irrigation trees, or patterns. Incidentally three elementary assumptions will be justified by their lack 作者: Facilities 時間: 2025-3-27 00:40 作者: Aprope 時間: 2025-3-27 02:25 作者: obstinate 時間: 2025-3-27 07:30
Interior and Boundary Regularity,point .∈. (Section 8.2). These definitions and the fact that connected components of an optimal traffic plan are themselves optimal traffic plans will permit to perform some surgery leading to the main regularity theorems. The first “interior” regularity theorem (Section 8.3) states that outside the作者: Jejune 時間: 2025-3-27 10:55 作者: 隼鷹 時間: 2025-3-27 16:37
Irrigability and Dimension,s irrigable with respect to α. In that case, notice that μ is also β-irrigable for β>α. This observation proves the existence of a critical exponent α associated with μ and defined as the smallest exponent such that μ is α-irrigable. The aim of the chapter is to link this exponent to more classical 作者: interpose 時間: 2025-3-27 18:17 作者: Ejaculate 時間: 2025-3-28 01:15
The Gilbert-Steiner Problem, setting by Gilbert in [44]. Following his steps, we first consider the irrigation problem from a source to two Dirac masses. If the optimal structure is made of three edges, the first order condition for a local optimum yields constraints on the angles between the edges at the bifurcation point (se作者: 賄賂 時間: 2025-3-28 02:45
Dirac to Lebesgue Segment: A Case Study,ase of Monge-Kantorovich transport, as illustrated by Figure 13.1, an optimal traffic plan is totally spread in the sense that fibers connect every point of the segment with the source. If α=0, which corresponds to the problem of Steiner, an optimal traffic plan is such that all the mass is first co作者: 妨礙 時間: 2025-3-28 10:16 作者: MARS 時間: 2025-3-28 14:25 作者: 英寸 時間: 2025-3-28 17:47
in den Metropolen Sinfonieorchester. existieren k?nnen. überraschend ist diese Erkenntnis deshalb, weil zeit gleich beim Neubau von Konzerth?usern ein Boom ausgebrochen ist.. Die Akteure in dem Feld sind verunsichert, lassen sich die demographischen Rahmenbedingungen doch nicht weg disku tieren.. I作者: Evocative 時間: 2025-3-28 21:53 作者: 培養(yǎng) 時間: 2025-3-29 02:34
The Collaborative Agenda, on a joint project where there is a shared interest in positive outcomes. The pre-existing and rigid boundaries between public and private sectors, different tiers of government and voluntary and community agencies are becoming more permeable as actors reach across these organisational divides and 作者: enflame 時間: 2025-3-29 03:28
Formeln und Tabellen der W?rmetechnikerspektivisch verformt; sie unterliegen den Einflüssen narrativer Ordnungsbedürfnisse und werden mit Deutungen versehen, die nicht den früheren Ereignissen selbst entstammen, sondern sp?ter erkannten Zusammenh?ngen.作者: 最高點 時間: 2025-3-29 08:11
MusiClef: Multimodal Music Tagging Taskesults as much as possible. Transparency is encouraged at several levels and stages, from the feature extraction procedure up to the evaluation phase, in which a dedicated categorization of ground truth tags will be used to deepen the understanding of the relation between the proposed approaches and experimental results.作者: Neolithic 時間: 2025-3-29 13:24
Indirect Restorations with CAD/CAM Technologyour experiences with Sirona’s CEREC and Planmeca’s E4D systems. The authors bring to light some basic principles that are applicable to any milled restoration as we expect more systems to emerge in the years to come.作者: projectile 時間: 2025-3-29 16:24 作者: 反感 時間: 2025-3-29 23:41 作者: 凹室 時間: 2025-3-30 02:21 作者: 感情 時間: 2025-3-30 06:32 作者: Nebulizer 時間: 2025-3-30 09:27 作者: 生來 時間: 2025-3-30 14:53 作者: 浪蕩子 時間: 2025-3-30 18:36
Book 2018rising all papers addressing mathematical creativity and giftedness presented at the International Congress on Mathematical Education (ICME) conferences since 2000. How can mathematical creativity contribute to children’s balanced development? What are the characteristics of mathematical giftedness
