Results 101 to 110 of about 5,869 (280)
Journal of Econometrics, 2011 The study of high-frequency financial data has been one of the most rapidly evolving areas of research over the last decade. We have seen an explosive growth in the availability of such data, which has gone hand in hand with the development of theory for how to analyze the data.
Meddahi, N, Mykland, P, Shephard, N
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A Note on Extendable Sets of Colorings and Rooted Minors
Journal of Graph Theory, EarlyView.ABSTRACT DeVos and Seymour proved that for every set C $C$ of 3‐colorings of a set X $X$ of vertices, there exists a plane graph G $G$ with vertices of X $X$ incident with the outer face such that a 3‐coloring of X $X$ extends to a 3‐coloring of G $G$ if and only if it belongs to C $C$.
Zdeněk Dvořák, Jan M. Swart
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Realization of Extremal Spectral Data by Pentadiagonal Matrices
MathematicsIn this paper, we address the extremal inverse eigenvalue problem for pentadiagonal matrices. We provide sufficient conditions for their existence and realizability through new constructions that consider spectral data of its leading principal ...
Hubert Pickmann-Soto +3 more
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An analysis of the realizability of smart cities in Tabriz metropolis [PDF]
جغرافیا و آینده پژوهی منطقهایThe rapid and often uncontrolled urban growth in recent decades has confronted the metropolis of Tabriz with multiple challenges, such as the scattered expansion of urban spaces, increasing socio-spatial inequalities, high traffic density, environmental ...
Ali Zarei, Reza Valizadeh, Ali Panahi
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Fully realizing partial realization
Glossa: a journal of general linguistics, 2018 There has been a movement in philosophy, growing over the last twenty years, to treat dispositionality as irreducible and, in turn, offer dispositional accounts of important metaphysical matters such as the laws of nature, free will, causation, and modality.
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Endocrinology, 2012 Activation of the somatotropic and gonadotropic axes are well-documented phenomena in the temporal sequence of human development. An increase in GHRH and a decrease in somatostatin from neurons in the hypothalamus have the net action of increasing GH secretion from the anterior pituitary.
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Generating Helical Polymorphic Beams Using Dielectric Metasurfaces
Laser &Photonics Reviews, EarlyView.Helix‐shaped polymorphic beams are optical fields whose intensity maxima spiral around the propagation axis, enabling particle manipulation through attractive or repulsive forces. Traditionally requiring expensive spatial light modulators, metasurfaces now provide a compact, cost‐effective alternative. This work demonstrates general helical polymorphic
Maryam Setareh +3 more
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Universal realizability of left half-plane spectra
Special MatricesA list Λ={λ1,λ2,…,λn}\Lambda =\left\{{\lambda }_{1},{\lambda }_{2},\ldots ,{\lambda }_{n}\right\} of complex numbers is said to be realizable if it is the spectrum of an entrywise nonnegative matrix AA. The list Λ\Lambda is diagonalizably realizable (Dℛ{
Soto Ricardo L. +2 more
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Multifunctionality in Silicon Photonics Through Temperature‐Driven Inverse Design
Laser &Photonics Reviews, EarlyView.Temperature‐conditioned inverse design embeds thermo‐optic reconfigurability directly into compact silicon photonic devices. By co‐optimizing a single geometry at 300 K (T1) and 520 K (T2), the same structure supports distinct optical functions, enabling experimentally verified switching and mode conversion without resonant architectures or additional ...
Berkay Neseli +8 more
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Realizability of matroid quotients [PDF]
We characterize the realizability of a quotient of matroids, over an infinite field $K$, in terms of the realizability over $K$ of a single matroid associated to it, called the Higgs major. This result extends to realizability of flag matroids.
Borzì, Alessio
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