Results 11 to 20 of about 777,086 (291)
Twist Positivity for Lagrangian Symmetries [PDF]
, 2000 We prove twist positivity and positivity of the pair correlation function for combined spatial and internal symmetries of free bosonic Lagrangians. We work in a general setting, extending the results obtained in Twist Positivity [1].Comment: 23 Pages ...
Grandjean, Olivier +2 more
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Jump Models with Delay—Option Pricing and Logarithmic Euler–Maruyama Scheme
Mathematics, 2020 In this paper, we obtain the existence, uniqueness, and positivity of the solution to delayed stochastic differential equations with jumps. This equation is then applied to model the price movement of the risky asset in a financial market and the Black ...
Nishant Agrawal, Yaozhong Hu
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Incremental intervention effects in studies with dropout and many timepoints#
Journal of Causal Inference, 2021 Modern longitudinal studies collect feature data at many timepoints, often of the same order of sample size. Such studies are typically affected by dropout and positivity violations.
Kim Kwangho +2 more
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Descriptor standard and positive discrete-time nonlinear systems
Archives of Control Sciences, 2015 A method of analysis of descriptor nonlinear discrete-time systems with regular pencils of linear part is proposed. The method is based on the Weierstrass-Kronecker decomposition of the pencils.
Kaczorek Tadeusz
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Perfect Matchings and Cluster Algebras of Classical Type [PDF]
Discrete Mathematics & Theoretical Computer Science, 2008 In this paper we give a graph theoretic combinatorial interpretation for the cluster variables that arise in most cluster algebras of finite type. In particular, we provide a family of graphs such that a weighted enumeration of their perfect matchings ...
Gregg Musiker
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Positivity relations on a locale [PDF]
, 2016 This paper analyses the notion of a positivity relationof Formal Topology from the point of view of the theory of Locales. It is shown that a positivity relation on a locale corresponds to a suitable class of points of its lower powerlocale.
Ciraulo, Francesco, Vickers, Steven
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Studia Logica, 2020 Arbitrary public announcement logic (APAL) reasons about how the knowledge of a set of agents changes after true public announcements and after arbitrary announcements of true epistemic formulas. We consider a variant of arbitrary public announcement logic called positive arbitrary public announcement logic (APAL+), which restricts arbitrary public ...
Hans van Ditmarsch +2 more
openaire +2 more sources
The Expression of Religious Positivity in Karen Armstrong’s Sīrah Work
Journal of Islamic and Religious Studies, 2018 Orientalists contributed much regarding their study of the Holy Qur’ān, Hadith and Sīrah since eighteenth century. Few of them attracted Muslim scholars due to the quality of their work about Islam, like the translation of the Holy Qur’ān, the indexes of
Fozia Fiaz, Dr Mohsina Munir
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Weak positivity for Hodge modules [PDF]
, 2016 We prove the weak positivity of the kernels of Kodaira-Spencer- type maps for pure Hodge module extensions of generically defined variations of Hodge structure.Comment: 11 pages; final version, with a few corrections and expository ...
Popa, Mihnea, Wu, Lei
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Frontiers in Physics, 2020 In this paper, two structure-preserving nonstandard finite difference (NSFD) operator splitting schemes are designed for the solution of reaction diffusion epidemic models.
Nauman Ahmed +9 more
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