Results 71 to 80 of about 2,148,404 (272)
MathematicsOn the basis of K. Kuratowski’s definitions of a topological structure with a closure or interior operator, the concept of a modal topological structure (MTS) with one of these operators was introduced by the author.
Krassimir Atanassov
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Non-Fregean Logics of Analytic Equivalence (I) [PDF]
, 2015 The identity connective is usually interpreted in non-Fregean logic as an operator representing the identity of situations. This interpretation is related to the modal criterion of the identity of sentence correlates, characteristic of the WT system and ...
Biłat, Andrzej
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Estimation of Power System Inertia Using Nonlinear Koopman Modes
, 2018 We report a new approach to estimating power system inertia directly from time-series data on power system dynamics. The approach is based on the so-called Koopman Mode Decomposition (KMD) of such dynamic data, which is a nonlinear generalization of ...
Hamasaki, Ryo +2 more
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Expectation Biases and Context Management with Negative Polar Questions [PDF]
, 2019 This paper examines distinctive discourse properties of preposed negative 'yes/no' questions (NPQs), such as 'Isn’t Jane coming too?'. Unlike with other 'yes/no' questions, using an NPQ '∼p?' invariably conveys a bias toward a particular answer, where ...
Silk, Alex
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Modal Appropriation for Use with In-Operation Modal Analysis [PDF]
Shock and Vibration, 2015 We propose in this paper a numerical modal appropriation method for use with in-operation modal analysis (INOPMA). The key idea is to realize that the correlation sequence of the system output is the sum of decaying sinusoids with a certain phase shift and therefore it may be considered as an impulse response.
M. Abdelghani, D. J. Inman
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Data-driven koopman operator-based detection and location for multi-source forced oscillations
International Journal of Electrical Power & Energy SystemsThe identification and localization of oscillation sources (OSs) is crucial for the effective suppression of forced oscillations in power systems. Herein, we introduce a novel data-driven methodology, leveraging the Koopman operator, for the detection ...
Deyou Yang +3 more
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The Contingency of Possibility
Principia: An International Journal of Epistemology, 2016 In this paper we criticize the way possibility is characterized in contemporary modal logic through the diamond operator. We explain that it does not match with the usual notion of possibility and that this notion is better described by the vertex Y of ...
Jean-Yves Béziau
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Rotations of Gödel Algebras with Modal Operators
, 2022 The present paper is devoted to study the effect of connected and disconnected rotations of Gödel algebras with operators grounded on directly indecomposable structures. The structures resulting from this construction we will present are nilpotent minimum (with or without negation fixpoint, depending on whether the rotation is connected or disconnected)
Tommaso Flaminio +3 more
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Modal operators and toric ideals [PDF]
Journal of Logic and Computation, 2019 Abstract In the present paper, we consider modal propositional logic and look for the constraints that are imposed to the propositions of the special type $\operatorname{\Box } a$ by the structure of the relevant finite Kripke frame. We translate the usual language of modal propositional logic in terms of notions of commutative algebra ...
R. Camerlo +2 more
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Logical consequence in modal logic II: Some semantic systems for S4 [PDF]
, 1974 : This 1974 paper builds on our 1969 paper (Corcoran-Weaver [2]). Here we present three (modal, sentential) logics which may be thought of as partial systematizations of the semantic and deductive properties of a sentence operator which expresses certain
Weaver, George
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