Results 71 to 80 of about 7,281 (167)

On powercounting in perturbative quantum gravity theories through color-kinematic duality

, 2013
The standard argument why gravity is not renormalisable relies on direct powercounting of Feynman graphs to estimate the degree of UV divergence.
Boels, Rutger H., Isermann, Reinke Sven
core   +1 more source

Portfolio Optimization for Rupiah Exchange Rate using Multidimensional Geometric Brownian Motion Model

JTAM (Jurnal Teori dan Aplikasi Matematika)
Exchange rate fluctuations are critical in ensuring economic stability and shaping foreign investment, while foreign currencies serve as asset and wealth diversification instruments.
Siti Masitah, Retno Budiarti, I Gusti Putu Purnaba   +2 more
doaj   +1 more source

Sketch-based Randomized Algorithms for Dynamic Graph Regression

, 2019
A well-known problem in data science and machine learning is {\em linear regression}, which is recently extended to dynamic graphs. Existing exact algorithms for updating the solution of dynamic graph regression problem require at least a linear time (in
Chehreghani, Mostafa Haghir
core  

Interconnected systems for the Lyapunov’s linear operator equations in the Hilbert space

Franklin Open
This paper investigates a perturbed interconnected system for linear operator Lyapunov equations in Hilbert space. We establish solvability conditions for the operator system in cases where the generating system of equations does and does not have ...
Oleksandr Pokutnyi, Yevhen Panasenko, Olena Polishchuk   +2 more
doaj   +1 more source

Constrained trajectory optimization for kinematically redundant arms [PDF]

Two velocity optimization schemes for resolving redundant joint configurations are compared. The Extended Moore-Penrose Technique minimizes the joint velocities and avoids obstacles indirectly by adjoining a cost gradient to the solution.
Carignan, Craig R., Tarrant, Janice M.
core   +1 more source

Unconventional computations of generalized inverses [PDF]

, 2015
Import 22/07/2015V tomto textu se budeme zabývat inverzními maticemi a jak takové matice spočítat. Poté, pomocí podobného algoritmu, zkusíme spočítat zobecněné inverze matic, které jsou regulární.
Pacholek, Jan
core  

Derivative trading networks: a spectral model for risk identification

Applied Network Science
This paper develops a spectral model for derivative trading networks in which the trading system’s covariance matrix coincides exactly with its graph Laplacian.
Zhengyuan Jerry Chen
doaj   +1 more source

Weakly perturbed linear boundary-value problem for system of fractional differential equations with Caputo derivative

Results in Applied Mathematics
We consider a perturbed linear boundary-value problem for a system of fractional differential equations with Caputo derivative. The boundary-value problem is specified by a linear vector functional, the number of components of which does not coincide ...
Oleksandr Boichuk, Viktor Feruk
doaj   +1 more source

Terminal value problem for the system of fractional differential equations with additional restrictions

Mathematical Modelling and Analysis
This paper deals with the study of terminal value problem for the system of fractional differential equations with Caputo derivative. Additional conditions are imposed on the solutions of this problem in the form of a linear vector functional. Using the
Oleksandr Boichuk, Viktor Feruk
doaj   +1 more source

Linear discriminant analysis with a generalization of the Moore–Penrose pseudoinverse [PDF]

, 2013
Tomasz Górecki, Maciej Łuczak
openalex   +1 more source