作者: 雜色 時間: 2025-3-22 00:04
,Abstract Linear Dependence — Matroids,ady considered by Bor?vka [1926] from a different point of view and characterized by a basic algorithmic property. Later, but independently, they were also rediscovered by van der Waerden [1937] as a combination of linear and algebraic independence. Modern matroid theory started with the fundamental作者: 百靈鳥 時間: 2025-3-22 00:44 作者: 跟隨 時間: 2025-3-22 06:33 作者: ABHOR 時間: 2025-3-22 11:49 作者: CON 時間: 2025-3-22 13:18 作者: CON 時間: 2025-3-22 20:32
Topological Results for Greedoids, and other discrete structures have been investigated by assigning topological spaces (usually simplical complexes) to them and then applying powerful results from algebraic topology. The seeming detour from discrete structures to a continuous framework and back again has provided solutions for seve作者: 問到了燒瓶 時間: 2025-3-22 23:36
Neue Ergebnisse der Nervenphysiologierlying mathematical object, and properties exploited by algorithms are often closely tied to classical structural analysis in mathematics. For example, the convexity of a function is essential for the efficiency of an algorithm minimizing it, or the Chinese remainder theorem is fundamental for modul作者: 安撫 時間: 2025-3-23 04:36 作者: 使混合 時間: 2025-3-23 07:32 作者: 武器 時間: 2025-3-23 11:28 作者: 落葉劑 時間: 2025-3-23 14:10 作者: 食草 時間: 2025-3-23 18:07
https://doi.org/10.1007/978-3-322-97796-0 been sketched in Chapter II. Most notable are the optimality of the greedy algorithm, nice polyhedral descriptions, and intersection results. In this chapter we explore the extension of some of these approaches to greedoids.作者: COW 時間: 2025-3-23 22:58
Recent Swiss Researches in Afghanistan and other discrete structures have been investigated by assigning topological spaces (usually simplical complexes) to them and then applying powerful results from algebraic topology. The seeming detour from discrete structures to a continuous framework and back again has provided solutions for seve作者: OGLE 時間: 2025-3-24 02:39
Recent Swiss Researches in Afghanistan results from algebraic topology. The seeming detour from discrete structures to a continuous framework and back again has provided solutions for several combinatorial problems (see Lovász [1978] and Bj?rner [1987] for surveys).作者: 事物的方面 時間: 2025-3-24 08:24
Neue Finanzwirtschaftliche Bilanzennd vice versa). While this property does not imply that the language is an antimatroid, it does imply that it is a greedoid. In fact, transposition greedoids form a proper superclass of interval greedoids.作者: 壓碎 時間: 2025-3-24 11:32 作者: 受辱 時間: 2025-3-24 18:09 作者: OUTRE 時間: 2025-3-24 21:32 作者: Figate 時間: 2025-3-25 01:47 作者: 一瞥 時間: 2025-3-25 05:10 作者: SENT 時間: 2025-3-25 10:05 作者: Hippocampus 時間: 2025-3-25 14:59
Finanzinnovationen am Finanzplatz ParisIn this chapter we study the class of local poset greedoids. Their name is motivated by the fact that their restrictions to feasible sets are poset antimatroids. These greedoids have the interval property. Local poset greedoids cover a broad range of examples: directed and undirected branchings, poset antimatroids and polymatroid greedoids.作者: Project 時間: 2025-3-25 19:51
,Abstract Convexity — Antimatroids,If we abstract the combinatorial properties of convexity in a manner similar to the abstraction of linear dependence in matroid theory, we obtain antimatroids. Interest in these structures has its sources in different fields of mathematics.作者: 令人作嘔 時間: 2025-3-25 21:19 作者: Ferritin 時間: 2025-3-26 00:09
Structural Properties,We would like to develop the basic machinery of greedoid theory. Some basic notions like rank, closure and (to a certain extent) minors can be introduced by extending the appropriate notions from matroids, while some others will be more specific for greedoids.作者: floodgate 時間: 2025-3-26 06:39
Further Structural Properties,We continue to develop some basic tools for the study of the structure of greedoids. We relate greedoids to lattices and extend the notion of connectivity to greedoids.作者: 難解 時間: 2025-3-26 11:13
Local Poset Greedoids,In this chapter we study the class of local poset greedoids. Their name is motivated by the fact that their restrictions to feasible sets are poset antimatroids. These greedoids have the interval property. Local poset greedoids cover a broad range of examples: directed and undirected branchings, poset antimatroids and polymatroid greedoids.作者: anesthesia 時間: 2025-3-26 14:05 作者: CRAMP 時間: 2025-3-26 18:15 作者: Lobotomy 時間: 2025-3-26 21:49 作者: 報復 時間: 2025-3-27 02:35
https://doi.org/10.1007/978-3-322-97796-0 been sketched in Chapter II. Most notable are the optimality of the greedy algorithm, nice polyhedral descriptions, and intersection results. In this chapter we explore the extension of some of these approaches to greedoids.作者: Restenosis 時間: 2025-3-27 07:25 作者: stressors 時間: 2025-3-27 11:32 作者: 多產(chǎn)子 時間: 2025-3-27 16:08
Greedoids on Partially Ordered Sets,nstan, Ingleton and Welsh [1972]. Here the independent sets correspond to nodes in a partially ordered set so that if . is independent, then the whole principal ideal of . consists of independent nodes and for any ., any two maximal independent nodes below . have the same height.作者: dyspareunia 時間: 2025-3-27 19:48 作者: 磨碎 時間: 2025-3-27 23:57
Greedoids978-3-642-58191-5Series ISSN 0937-5511 Series E-ISSN 2197-6783 作者: 削減 時間: 2025-3-28 03:08
The Changing Landscape of the?Critical Care of Pediatric Immunocompromised Hematology and Oncology Patric intensive care units (PICUs) but have a disproportionately high mortality rate. A single-center study of 1278 patients admitted to a pediatric hematology-oncology service over an 11-year period found an admission rate of 4.2% with an overall PICU mortality rate of 38.9% (Faraci et al. J Pediat作者: 惡意 時間: 2025-3-28 07:52 作者: Mediocre 時間: 2025-3-28 12:39 作者: 現(xiàn)任者 時間: 2025-3-28 14:40
Adiabatic and Diabatic Basis Sets in Molecular Calculations,pproximation [1] (B.O.), so that it can be stated that the notion itself of molecular structure would lose much of its meaning if this approximation did not hold. Simple order-of-magnitude arguments [2] show that, so far as the energy hypersurfaces are well separated, the contributions of the non-ad作者: 嚴峻考驗 時間: 2025-3-28 20:39 作者: facetious 時間: 2025-3-29 00:00 作者: overbearing 時間: 2025-3-29 03:20
The Etruscan Venus,uch surfaces are generated by the prescribed motion of an oval (e.g. an ellipse) through space. Thus, the notion of an ovalesque is a projective generalization of a ruled surface. Recall that ruled surfaces are generated by straight lines.作者: Acquired 時間: 2025-3-29 07:30 作者: 祝賀 時間: 2025-3-29 13:39 作者: 漸變 時間: 2025-3-29 15:52 作者: cognizant 時間: 2025-3-29 22:34
Back Matter, the starting point of our inquiry into the internal workings of Nordic political parties must be that the delegation of political power is a complex process that demands both theoretical precision and empirical investigation.作者: SEED 時間: 2025-3-30 00:09 作者: Aids209 時間: 2025-3-30 05:20
https://doi.org/10.1007/978-3-658-36378-9Post-Oxidation; SI Engines; Reaction kinetics; Scavenging; Simulation; 1D model approach; 1D post-oxidatio作者: 全部逛商店 時間: 2025-3-30 09:03
