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This paper introduces a theory of Thermodynamic Formalism for Iterated Function Systems with Measures (IFSm). We study the spectral properties of the Transfer and Markov operators associated to a IFSm. We introduce variational formulations…

动力系统 · 数学 2022-11-10 Jader E. Brasil , Elismar R. Oliveira , Rafael Rigão Souza

We show here that the Hamiltonian for an electronic system may be written exactly in terms of fluctuation operators that transition constituent fragments between internally correlated states, accounting rigorously for inter-fragment…

化学物理 · 物理学 2019-05-24 Anthony D. Dutoi , Yuhong Liu

A new perspective on the classical mechanical formulation of particle trajectories in lorentz-violating theories is presented. Using the extended hamiltonian formalism, a Legendre Transformation between the associated covariant Lagrangian…

高能物理 - 理论 · 物理学 2017-09-13 Don Colladay

One of the major tasks in online education is to estimate the concentration levels of each student. Previous studies have a limitation of classifying the levels using discrete states only. The purpose of this paper is to estimate the subtle…

机器学习 · 计算机科学 2021-04-26 Woodo Lee , Jakyung Koo , Nokyung Park , Pilgu Kang , Jeakwon Shim

Biological and physical systems often exhibit distinct structures at different spatial/temporal scales. Persistent homology is an algebraic tool that provides a mathematical framework for analyzing the multi-scale structures frequently…

代数拓扑 · 数学 2016-02-01 Jonathan Jaquette , Miroslav Kramár

Global information about dynamical systems can be extracted by analysing associated infinite-dimensional transfer operators, such as Perron-Frobenius and Koopman operators as well as their infinitesimal generators. In practice, these…

数值分析 · 数学 2024-06-21 Liam Llamazares-Elias , Samir Llamazares-Elias , Jonas Latz , Stefan Klus

The standard Hamiltonian machinery, being applied to field theory, leads to infinite-dimensional phase spaces. It is not covariant. In this article, we present covariant finite-dimensional multimomentum Hamiltonian formalism for field…

高能物理 - 理论 · 物理学 2008-02-03 G. Sardanashvily

Hamiltonian Mechanics works for conserved systems and Quantum Mechanics is given in Hamiltonian language. It is considered that complexifying the quantum Hamiltonian, a balanced loss and gain model can be created. The usual mathematics of…

综合物理 · 物理学 2015-12-03 Chetan Waghela

State machine formalisms equipped with hierarchy and parallelism allow to compactly model complex system behaviours. Such models can then be transformed into executable code or inputs for model-based testing and verification techniques.…

软件工程 · 计算机科学 2017-10-24 Xavier Devroey , Gilles Perrouin , Maxime Cordy , Axel Legay , Pierre-Yves Schobbens , Patrick Heymans

A unified framework for theories of modified gravity will be an essential tool for interpreting the forthcoming deluge of cosmological data. We present such a formalism, the Parameterized Post-Friedmann framework (PPF), which parameterizes…

宇宙学与河外天体物理 · 物理学 2013-02-08 Tessa Baker , Pedro G. Ferreira , Constantinos Skordis

We present a finite difference version of the eth formalism, which allows use of tensor fields in spherical coordinates in a manner which avoids polar singularities. The method employs two overlapping stereographic coordinate patches, with…

广义相对论与量子宇宙学 · 物理学 2009-10-30 R. Gomez , L. Lehner , P. Papadopoulos , J. Winicour

We propose a novel framework for the regularised inversion of deep neural networks. The framework is based on the authors' recent work on training feed-forward neural networks without the differentiation of activation functions. The…

数值分析 · 数学 2023-03-06 Xiaoyu Wang , Martin Benning

The extremization of an appropriate entropic functional may yield to the probability distribution functions maximizing the respective entropic structure. This procedure is known in Statistical Mechanics and Information Theory as Jaynes'…

统计力学 · 物理学 2015-05-13 Thomas Oikonomou , Ugur Tirnakli

A new formalism is given for the renormalization of quantum field theories to all orders of perturbation theory, in which there are manifestly no overlapping divergences. We prove the BPH theorem in this formalism, and show how the local…

高能物理 - 理论 · 物理学 2007-05-23 A. D. Kennedy

This paper presents a generalised two-level implementation which can handle linear and non-linear morphological operations. An algorithm for the interpretation of multi-tape two-level rules is described. In addition, a number of issues…

cmp-lg · 计算机科学 2008-02-03 George Anton Kiraz

For an accurate description of electromagneto-thermomechanical systems, electromagnetic fields need to be described in a Eulerian frame, whereby the thermomechanics is solved in a Lagrangean frame. It is possible to map the Eulerian frame…

计算工程、金融与科学 · 计算机科学 2019-06-05 B. E. Abali , A. F. Queiruga

Dimensional regularization of Euclidean momentum space integrals is a highly successful technique in renormalization of quantum field theories. While it yields a straightforward algorithmic method, with which to evaluate diagrams beyond…

数学物理 · 物理学 2020-09-03 Juuso Österman

This paper presents the main features of a system that aims to transform regular expressions into shorter equivalent expressions. The system is also capable of computing other operations useful for simplification, such as checking the…

符号计算 · 计算机科学 2023-07-14 Baudouin Le Charlier

This technical report presents a general framework for parsing a variety of grammar formalisms. We develop a grammar formalism, called an Abstract Grammar, which is general enough to represent grammars at many levels of the hierarchy,…

计算与语言 · 计算机科学 2018-01-22 Daniel Harasim , Chris Bruno , Eva Portelance , Martin Rohrmeier , Timothy J. O'Donnell

Finite time coherent sets [8] have recently been defined by a measure based objective function describing the degree that sets hold together, along with a Frobenius-Perron transfer operator method to produce optimally coherent sets. Here we…

动力系统 · 数学 2015-06-05 Tian Ma , Erik M. Bollt