Results 11 to 20 of about 3,386,331 (258)

A simple panel-CADF test for unit roots [PDF]

open access: yes, 2011
Copyright © Blackwell Publishing Ltd and the Department of Economics, University of Oxford 2012. This is the accepted version of the following article: Costantini, M. and Lupi, C. (2013), A Simple Panel-CADF Test for Unit Roots.
Lupi, Claudio   +3 more
core   +1 more source

Pharmacognostical and physicochemical evaluation on vata (ficus benghalensis linn.) Jata (Aerial Roots)

open access: yesMedical Journal of Dr. D.Y. Patil Vidyapeeth, 2022
Introduction: Vata (Ficus benghalensis Linn.) is a sacred medicinal plant since Vedic times. It spread all over by its hanging or supporting roots, hence called as Vata. Aims: The aim was to study the macro- and microscopic characters, physiochemical and
Pravin Jawanjal   +4 more
doaj   +1 more source

The method of simple iterations with correction of convergence and the minimal discrepancy method for plasmonic problems

open access: yesФизика волновых процессов и радиотехнические системы, 2021
The problem of searching for complex roots of the dispersion equations of plasmon-polaritons along the boundaries of the layered structure-vacuum interface is considered. Such problems arise when determining proper waves along the interface of structures
Mikhail V. Davidovich   +2 more
doaj   +1 more source

Classification of 4-dimensional associative algebras with principal generators over complex numbers

open access: yesJournal of Hebei University of Science and Technology, 2017
In order to obtain the classification of 4-dimensional associative algebras with principal generators over complex number C under isostructuralism, by using the ring theory and distribution of roots of the equations satisfied by the principal generators:
Changzhou LI, Haiyang LI
doaj   +1 more source

Supergravity backgrounds of the η-deformed AdS2 × S2 × T6 and AdS5 × S5 superstrings

open access: yesJournal of High Energy Physics, 2019
We construct supergravity backgrounds for the integrable η-deformations of the AdS2 × S2 × T6 and AdS5 × S5 superstring sigma models. The η-deformation is governed by an R-matrix that solves the non-split modified classical Yang-Baxter equation on the ...
Ben Hoare, Fiona K. Seibold
doaj   +1 more source

On Real Roots of Systems of Trancendental Equations with Real Coefficients

open access: yesИзвестия Иркутского государственного университета: Серия "Математика"
The work is devoted to the study of the number of real roots of systems of transcendental equations in $\mathbb C^n$ with real coefficients, consisting of entire functions, in some bounded multidimensional domain $D\subset \mathbb R^n$.
A.M. Kytmanov, O.V. Khodos
doaj   +1 more source

Sierpinski-like carpets

open access: yesApplied Mathematics on Science and Engineering
The Sierpinski carpet was developed as a two-dimension extension of the Cantor set. Here we discuss the artistic expression of such carpets along with the development of more visually pleasing Sierpi´nski-like carpets created by using the basins of ...
Thor Martinsen, Beny Neta, Maital Neta
doaj   +1 more source

Computing Simple Roots by an Optimal Sixteenth-Order Class

open access: yesJournal of Applied Mathematics, 2012
The problem considered in this paper is to approximate the simple zeros of the function by iterative processes. An optimal 16th order class is constructed.
F. Soleymani, S. Shateyi, H. Salmani
doaj   +1 more source

A sterile hydroponic system for characterising root exudates from specific root types and whole-root systems of large crop plants

open access: yesPlant Methods, 2018
Background Plant roots release a variety of organic compounds into the soil which alter the physical, chemical and biological properties of the rhizosphere.
Akitomo Kawasaki   +8 more
doaj   +1 more source

Large-girth roots of graphs [PDF]

open access: yes, 2010
We study the problem of recognizing graph powers and computing roots of graphs. Our focus is on classes of graphs with no short cycles. We provide a polynomial time recognition algorithm for r-th powers of graphs of girth at least 2r vertical bar 3, thus
Adamaszek, Michal   +4 more
core   +1 more source

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