Results 31 to 40 of about 746,739 (376)

On Hamiltonicity of {claw, net}-free graphs [PDF]

open access: yes, 2006
An st-path is a path with the end-vertices s and t. An s-path is a path with an end-vertex s. The results of this paper include necessary and sufficient conditions for a {claw, net}-free graph G with given two different vertices s, t and an edge e to ...
Kelmans, Alexander
core   +3 more sources

Riemann manifold Langevin and Hamiltonian Monte Carlo methods

open access: yesJournal of the Royal Statistical Society: Series B (Statistical Methodology), 2011
Summary.  The paper proposes Metropolis adjusted Langevin and Hamiltonian Monte Carlo sampling methods defined on the Riemann manifold to resolve the shortcomings of existing Monte Carlo algorithms when sampling from target densities that may be high ...
M. Girolami, B. Calderhead
semanticscholar   +1 more source

Variational quantum algorithms for discovering Hamiltonian spectra [PDF]

open access: yesPhysical Review A, 2018
Calculating the energy spectrum of a quantum system is an important task, for example to analyse reaction rates in drug discovery and catalysis. There has been significant progress in developing algorithms to calculate the ground state energy of ...
Suguru Endo   +4 more
semanticscholar   +1 more source

Renormalization of Hamiltonians [PDF]

open access: yesPhysical Review D, 1993
A matrix model of an asymptotically free theory with a bound state is solved using a perturbative similarity renormalization group for hamiltonians. An effective hamiltonian with a small width, calculated including the first three terms in the perturbative expansion, is projected on a small set of effective basis states. The resulting small hamiltonian
Stanisław D. Głazek, Kenneth G. Wilson
openaire   +3 more sources

Hamiltonian no-torsion

open access: yesGeometry & Topology, 2023
51 pages; minor improvements in the ...
Atallah, Marcelo S., Shelukhin, Egor
openaire   +2 more sources

Structure-preserving discretization for port-Hamiltonian descriptor systems [PDF]

open access: yesIEEE Conference on Decision and Control, 2019
We extend the modeling framework of port-Hamiltonian descriptor systems to include under- and overdetermined systems and arbitrary differentiable Hamiltonian functions.
V. Mehrmann, Riccardo Morandin
semanticscholar   +1 more source

Delay Differential Model for Tumour-Immune System With Chemo-therapy and Optimal Control [PDF]

open access: yesITM Web of Conferences, 2020
In this paper, we present a mathematical model of tumour-immune interactions in presence of chemotherapy treatment. The model is governed by a system of delay differential equations with optimal control variables.
Rihan Fathalla A., Rihan Bassel F.
doaj   +1 more source

Systematic Renormalization in Hamiltonian Light-Front Field Theory [PDF]

open access: yes, 1998
We develop a systematic method for computing a renormalized light-front field theory Hamiltonian that can lead to bound states that rapidly converge in an expansion in free-particle Fock-space sectors. To accomplish this without dropping any Fock sectors
B. D. Jones   +26 more
core   +4 more sources

Hamiltonians for curves [PDF]

open access: yesJournal of Physics A: Mathematical and General, 2002
17 ...
Jemal Guven   +2 more
openaire   +3 more sources

Contact Hamiltonian systems [PDF]

open access: yesJournal of Mathematics and Physics, 2018
In this paper, we study Hamiltonian systems on contact manifolds, which is an appropriate scenario to discuss dissipative systems. We show how the dissipative dynamics can be interpreted as a Legendrian submanifold, and also prove a coisotropic reduction
Manuel Lainz Valc'azar, M. D. Le'on
semanticscholar   +1 more source

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