Results 21 to 30 of about 3,950,481 (321)

Periodic dynamics of predator-prey system with Beddington–DeAngelis functional response and discontinuous harvesting

open access: yesBoundary Value Problems, 2023
This paper investigates a delayed predator-prey model with discontinuous harvesting and Beddington–DeAngelis functional response. Using the theory of differential inclusion theory, the existence of positive solutions in the sense of Filippov is discussed.
Yingying Wang, Zhinan Xia
doaj   +1 more source

Toward a complete description of b → uℓ − ν ¯ $$ \overline{\nu} $$ within the Weak Effective Theory decays

open access: yesJournal of High Energy Physics, 2023
We fit the available data on exclusive semileptonic b → uℓ − ν ¯ $$ \overline{\nu} $$ decays within the Standard Model and in the Weak Effective Theory. Assuming Standard Model dynamics, we find V ub = 3.59 − 0.12 + 0.13 × 10 − 3 $$ \left|{V}_{ub}\right|=
Domagoj Leljak   +4 more
doaj   +1 more source

Automating Leibniz’s Theory of Concepts [PDF]

open access: yes, 2015
Our computational metaphysics group describes its use of automated reasoning tools to study Leibniz’s theory of concepts. We start with a reconstruction of Leibniz’s theory within the theory of abstract objects (henceforth ‘object theory’).
Alama, Jesse   +2 more
core   +2 more sources

Remarks on abstract Galois theory

open access: yesManuscrito, 2011
This paper is a historical companion to a previous one, in which it was studied the so-called abstract Galois theory as formulated by the Portuguese mathematician José Sebastião e Silva (see da Costa, Rodrigues (2007)).
Newton C. A. da Costa, Otávio Bueno
doaj   +1 more source

Analysis and synthesis of a growing network model generating dense scale-free networks via category theory

open access: yesScientific Reports, 2020
We propose a growing network model that can generate dense scale-free networks with an almost neutral degree−degree correlation and a negative scaling of local clustering coefficient. The model is obtained by modifying an existing model in the literature
Taichi Haruna, Yukio-Pegio Gunji
doaj   +1 more source

Quantum decision making in automatic driving

open access: yesScientific Reports, 2022
The behavior intention estimation and interaction between Autonomous Vehicles (AV) and human traffic participants are the key problems in Automatic Driving System (ADS).
Qingyuan Song   +5 more
doaj   +1 more source

Divergent ⇒ complex amplitudes in two dimensional string theory

open access: yesJournal of High Energy Physics, 2021
In a recent paper, Balthazar, Rodriguez and Yin found remarkable agreement between the one instanton contribution to the scattering amplitudes of two dimensional string theory and those in the matrix model to the first subleading order.
Ashoke Sen
doaj   +1 more source

On the consistency of the Horava Theory [PDF]

open access: yes, 2004
With the goal of giving evidence for the theoretical consistency of the Horava Theory, we perform a Hamiltonian analysis on a classical model suitable for analyzing its effective dynamics at large distances.
Buchbinder, I. L.   +2 more
core   +2 more sources

KAJIAN MENGENAI PENERIMAAN TEKNOLOGI DAN INFORMASI MENGGUNAKAN TECHNOLOGY ACCAPTANCE MODEL (TAM)

open access: yesRekayasa, 2011
Salah satu kunci awal bagi keberhasilan implementasi teknologi informasi dan komunikasi dalam perusahaan adalah kemauan untuk menerima teknologi tersebut dikalangan pengguna.
Khairani Ratnasari Siregar
doaj   +1 more source

Classical open string amplitudes from boundary string field theory

open access: yesJournal of High Energy Physics, 2019
We calculate the corrections to the open string BRST charge in boundary string field theory and show that the expansion coefficients agree with the perturbative S-matrix to all orders.
Christoph Chiaffrino, Ivo Sachs
doaj   +1 more source

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