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142,533 research outcomes, page 1 of 14,254
  • publication . Article . Preprint . Other literature type . 2017
    Open Access English
    Authors:
    Dmitry Gayfulin;
    Persistent Identifiers

    We call a positive real number $\lambda$ admissible if it belongs to the Lagrange spectrum and there exists an irrational number $\alpha$ such that $\mu(\alpha)=\lambda$. Here $\mu(\alpha)$ denotes the Lagrange constant of $\alpha$ - maximal real number $c$ such that $\...

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  • publication . Article . Other literature type . Preprint . 2011
    Open Access English
    Authors:
    Rizos Sklinos;
    Persistent Identifiers

    We answer a question raised by Pillay, that is whether the infinite weight of the generic type of the free group is witnessed in $F_{\omega}$. We also prove that the set of primitive elements in finite rank free groups is not uniformly definable. As a corollary, we obse...

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  • publication . Preprint . Other literature type . Article . 2020
    Open Access
    Authors:
    Debendra P. Banjade; Menassie Ephrem;
    Persistent Identifiers
    Publisher: Rocky Mountain Mathematics Consortium

    Given a directed graph $E$ and a labeling $\mathcal{L}$, one forms the labeled graph $C^*$-algebra by taking a weakly left--resolving labeled space $(E, \mathcal{L}, \mathcal{B})$ and considering a universal generating family of partial isometries and projections. In th...

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  • publication . Article . Other literature type . 1974
    Open Access English
    Authors:
    Andy R. Magid;
    Persistent Identifiers
    Publisher: University of Michigan, Department of Mathematics
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  • publication . Other literature type . Article . 1996
    Open Access
    Authors:
    Eijirou Hayakawa;
    Persistent Identifiers
    Publisher: Tokyo Journal of Mathematics

    Let us assume that a 2-torus homeomorphism $f$ isotopic to the identity has a segment of irrational slope as its rotation set $\rho(F)$. We prove that if the chain recurrent set $R(f)$ of $f$ is not chain transitive, then $\rho(F)$ has a rational point realized by a per...

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  • publication . Article . Other literature type . Preprint . 2014
    Open Access English
    Authors:
    Yunan Liu; Ward Whitt;
    Persistent Identifiers
    Project: NSF | EAGER: Mathematical Model... (0948190), NSF | Multi-Server Queues with ... (1066372)

    A many-server heavy-traffic FCLT is proved for the $G_t/M/s_t+\mathit {GI}$ queueing model, having time-varying arrival rate and staffing, a general arrival process satisfying a FCLT, exponential service times and customer abandonment according to a general probability ...

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  • publication . Other literature type . Part of book or chapter of book . Article . 2009
    Open Access
    Authors:
    John P. Burgess;
    Publisher: Duke University Press

    The question, "Which modal logic is the right one for logical necessity?," divides into two questions, one about model-theoretic validity, the other about proof-theoretic demonstrability. The arguments of Halldén and others that the right validity argument is S5, and th...

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  • publication . Other literature type . Article . 2020
    Open Access
    Authors:
    Thomas Porter; Michael Stewart;
    Persistent Identifiers
    Publisher: Institute of Mathematical Statistics

    Higher criticism (HC) is a popular method for large-scale inference problems based on identifying unusually high proportions of small $p$-values. It has been shown to enjoy a lower-order optimality property in a simple normal location mixture model which is shared by th...

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  • publication . Article . Other literature type . 1970
    Open Access
    Authors:
    B. W. Glickfeld;
    Persistent Identifiers
    Publisher: Duke University Press
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  • publication . Article . Other literature type . 1991
    Open Access
    Authors:
    Gérard Gonzalez-Sprinberg;
    Persistent Identifiers
    Publisher: Tokyo Institute of Technology, Department of Mathematics
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142,533 research outcomes, page 1 of 14,254