Báo cáo toán học: " Subdivision yields Alexander duality on independence complexes" pps

... vertex corresponds to K ∅ . The non-empty intersections corresp ond to complements of non-independent sets, exactly as in t he Alexander duality, which completes the proof.  Theorem 6 The independence ... simplex on V (G). If we contract this simplex we get a homotopy equivalent CW complex. The suspension is the double cone over (Ind(G)) ∗ . A cone is contractible, so we might contrac...

Ngày tải lên: 08/08/2014, 01:20

... on graph spectra. The first one, following from Frobenius’s theorem on nonnegative matrices, asserts that if H is a proper subgraph of a connected graph G, then µ (G) > µ (H) . The second one, due ... diameter, connected graph, bipartite graph 1 Introduction Our notation is standard (e.g., see [2], [3], and [5]). In particular, unless specified other- wise, all graphs are defined on the...

Ngày tải lên: 07/08/2014, 15:22

... optimizations (e.g., data aggregation) before sending the data to the destination sink [6]. Second, in WSNs deployed in harsh environments, source nodes can be affected by several environmental conditions ... this infrastructure, which considers dynamic conditions of multiple sinks and sources. The architecture consists of ‘highways’ in a honeycomb tessellation, which are the three main diagon...

Ngày tải lên: 20/06/2014, 20:20

... babble noise conditions. The experi- mental results show that the VAD based on MP coeffi- cients outperforms the ones based on the DFT in all of the testing conditions, and it can be concluded that ... detection. IEEE Trans Speech Audio Process. 16(8):1565–1578 (2008) 13. J Ramirez, JM Gorriz, JC Segura, CG Puntonet, AJ Rubio, Speech/non-speech discrimination based on contextual informa...

Ngày tải lên: 20/06/2014, 21:20

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Ngày tải lên: 05/08/2014, 10:20

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Ngày tải lên: 05/08/2014, 15:20

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Ngày tải lên: 05/08/2014, 15:21

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Ngày tải lên: 05/08/2014, 15:21

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Ngày tải lên: 05/08/2014, 15:21

... on Approximations 10 (2004) 371–377. 2. O. V. Besov, V. P. Ilin, and S. M. Nikol’skii, Integral Representation of Functions and Imbedding Theorems, V. H. Winston and Sons, Washington, D. C. , 1978, 1979, ... [1] and [10], we give an extension of the Gagliardo-Nirenberg inequality to Lorentz spaces. Let Φ : [0, ∞) → [0, ∞) be a non-zero concave function, which is non-decreasing and Φ(0+) = Φ...

Ngày tải lên: 06/08/2014, 05:20