Báo cáo toán học: "A uniform approach to complexes arising from forests" pps
Báo cáo toán học: "A uniform approach to complexes arising from forests" pps
... this paper we present a unifying approach to study the homotopy type ofseveral complexes arising from forests. We show that this method applies uniformly to many complexes that have been extensively ... the concepts introduced in Section 3 to study simplicial complexes associated to forests. We shall see that all these complexes are grapes and are homotopic to wedges of spheres by giving in each ... ho-motopic to wedges of spheres of (possibly) different dimensions and include, for instance,the complexes of directed trees, the independence complexes, the dominance complexes, the matching complexes, ...
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Báo cáo khoa học: "A Uniform Approach to Underspecification and Parallelism" doc
... many linguists), too. 410 From the trees in (16) one cannot construct a con- text function to be assigned to C which solves the parallelism constraints in (13). 4 Comparison to other Theories ... relation to other formalisms. Section 3 demonstrates the application to scope underspeci- fication, to ellipsis, and to the combined cases. In Section 4, the proposed treatment is compared to re- ... equality up -to constraints over finite trees, which al- low to describe parallel tree structures. An equality up -to constraint has the form X1/X~=Y1/Y~ and is interpreted with respect to the...
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Báo cáo toán học: " A new approach to investigate the interactions between sediment transport and ecotoxicological processes during flood events" ppt
... combin-ing hydrodynamical with ecotoxicological approacheswas clearly demonstrated. This new interdisciplinary approach represents a powerful and promising tool to improve our understanding of ... and State Governments - is to combine the tradi-tionally separated disciplines of hydrauli c engineeringand ecotoxicology in a single experimental approach inorder to investigate the bioavailability ... new approach to investigatethe interactions between sediment transport and ecotoxicologicalprocesses during flood events. Environmental Sciences Europe 2011 23:39.Submit your manuscript to...
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Báo cáo toán học: "A Combinatorial Approach to Evaluation of Reliability of the Receiver Output for BPSK Modulation with Spatial Diversit" pot
... belongs to M(N)m, we can state thatin P there is exactly one occurence of each one of N +1, ,N + m, and that thecorresponding boxes form a ribbon r numbered from bottom to top and from left to ... process to their mirror images areequal (cf. [7, 15]).Awordw(T ) can be associated with a Young tableau T over an alphabet A, by readingthe columns of T from top to bottom and from left to right. ... originaltableau (i.e. 1–3), etc. Thus we obtain the tableau Q from Figure 3-c.The only thing left to do now is to apply Knuth’s bijection to the pair (P, Q)toobtainthe matrix in Figure 3-d.Note 5.1 We denote...
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Báo cáo toán học: "A semigroup approach to wreath-product extensions of Solomon’s descent algebras" pdf
... combinatorics 16 (2009), #R21 4Our approach, in addition to providing an elementary and concise route to understand-ing Mantaci and Reutenauer’s colored descent algebras, offers a combinatorial ... suggested thatI allow G to be non-abelian. Ken Brown shared his insights on how to think about facesemigroups combinatorially. Jean-Yves Thibon brought the paper [20] to my attentionand provided ... suggestions forimproving the exposition.the electronic journal of combinatorics 16 (2009), #R21 7A semigroup approach to wreath-product extensionsof Solomon’s descent algebrasSamuel K. HsiaoMathematics...
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Báo cáo toán học: "A New Approach to the Dyson Coefficients" doc
... direct calculation approach to evaluating the coefficientsin the Dyson product, and illustrate this approach through the case of M = x2r/x2s. Theapplications of our method to other cases like ... +1xn.This completes the proof.Now we are ready to prove Theorem 1.2. Without loss of generality, we may assumer = 1 and s = 2 in Theorem 1.2.A new approach to Theorem 1.2. By (2.4) we haveV1− 1x1+V2− ... · xn1x1+1x2+ · · · +1xn.the electronic journal of combinatorics 17 (2010), #N30 3A New Approach to the Dyson CoefficientsSabrina X.M. Pa ngCollege of Mathematics and StatisticsHebei...
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Báo cáo toán học: "A probabilistic approach to the asymptotics of the length of the longest alternating subsequence" pdf
... formula for E LAn(µ), which, of course, is asymptotically equivalent to (2/3 −1/3q) n. From (7) it is not difficult to derive also a nonasymptotic expressionfor E LAn(µ):E LAn(µ) = n Osc ... of a uniform random permutation τ ∈ [n]. Classical probabilistic arguments are used to rederivethe asymptotic mean, variance and limiting law of LAn(τ ). Our methodology isrobust enough to ... us just say that, to date, the proofs developed to solve these problems are ofa combinatorial or a nalytic nature and that we wish below t o provide probabilistic ones.Our approach is developed...
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Báo cáo y học: " A Practical Approach to Managing Patients with HCV Infection"
... routine laboratory studies should be obtained as well to monitor for signs of adverse effects due to the drugs. Repeat HVC viral load should be repeated at week 12 of treatment to document EVR. ... document EVR. The decision to continue treatment after week 12 would then be determined based on individual response to treatment (EVR), tolerance to the drugs, laboratory profiles, and the pre-treatment ... heart disease. Patients with autoimmune hepatitis or other conditions known to be exacerbated by interferon and ribavirin or known to have hypersensitivity to these drugs should not receive...
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Báo cáo y học: "A Practical Approach to Management of Chronic Hepatitis B"
... sensitive to LAM treatment [16]. 4. Indications of HBV Treatment Historically, levels of HBV DNA and ALT, and histological activity of liver biopsy have been used as the three main factors to determine ... Levels It is known that HBV is not directly pathogenic to hepatocytes and host immune response to HBV antigens expressed on the infected hepatocytes is the principle determinants of the liver injury. ... practical clinical approach to managing CHB. Highly sensitive PCR-based quantitation of HBV DNA makes it possible to precisely determine pre-treatment HBV load and monitor HBV DNA response...
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Tài liệu Báo cáo khoa học: "A Bootstrapping Approach to Named Entity Classification Using Successive Learners" pdf
... concept-based seeds are retrieved from the repository to train a decision list for NE classification. 3. The learned rules are applied to the NE candidates stored in the repository. 4. The proper names ... 86.7% To benchmark the quality of the automatically constructed corpus (Table 2), the testing corpus is first processed by our parser and then saved into the repository. The repository level ... Has_Predicate: from logical subject to verb e.g. He said she would want him to join. Æ he: Has_Predicate(say) she: Has_Predicate(want) him: Has_Predicate(join) (2) Object_Of : from logical object to...
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