Results 21 to 30 of about 3,872,829 (369)

Inverse melting and inverse freezing: a spin model [PDF]

open access: yes, 2005
Systems of highly degenerate ordered or frozen state may exhibit inverse melting (reversible crystallization upon heating) or inverse freezing (reversible glass transition upon heating).
Schupper, Nurith, Shnerb, Nadav M.
core   +1 more source

On fourth order accuracy stable difference scheme for a multi-point overdetermined elliptic problem

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2021
In this paper fourth order of accuracy difference scheme for approximate solution of a multi-point elliptic overdetermined problem in a Hilbert space is proposed.
C. Ashyralyyev, G. Akyuz
doaj   +1 more source

A COMPUTATION PERSPECTIVE FOR THE EIGENVALUES OF CIRCULANT MATRICES INVOLVING GEOMETRIC PROGRESSION

open access: yesJurnal Matematika UNAND, 2023
In this article, the eigenvalues and inverse of circulant matrices with entries in the first row having the form of a geometric sequence are formulated explicitly in a simple form in one theorem. The method for deriving the formulation of the determinant
SISWANDI SISWANDI   +3 more
doaj   +1 more source

Uniqueness result for a fractional diffusion coefficient identification problem

open access: yesBoundary Value Problems, 2019
In this paper, we establish an identifiability result for the coefficient identification problem in a fractional diffusion equation in a bounded domain from the observation of the Cauchy data on particular subsets of the boundary.
Fadhel Jday, Ridha Mdimagh
doaj   +1 more source

Completely inverse $AG^{**}$-groupoids [PDF]

open access: yes, 2013
A completely inverse $AG^{**}$-groupoid is a groupoid satisfying the identities $(xy)z=(zy)x$, $x(yz)=y(xz)$ and $xx^{-1}=x^{-1}x$, where $x^{-1}$ is a unique inverse of $x$, that is, $x=(xx^{-1})x$ and $x^{-1}=(x^{-1}x)x^{-1}$.
Dudek, Wieslaw A., Gigoń, Roman S.
core   +2 more sources

Analisis Kedalaman Potensi Akuifer Air Tanah dengan Pemodelan Distribusi Tahanan Jenis secara Inversi 2-D Desa Kompas Raya, Nanga Pinoh, Melawi, Kalimantan Barat

open access: yesEksplorium: Buletin Pusat Pengembangan Bahan Galian Nuklir, 2013
Geophysical investigation by geoelectrical resistivity method have been done at Kompas Raya Village, Pinoh, Melawi, West Kalimantan Province. Kompas Raya Village is an area that is always a lack of water in the dry season, so the villagers are always ...
Adhika Junara Karunianto
doaj   +1 more source

Inverse privacy [PDF]

open access: yesCommunications of the ACM, 2016
Seeking a market-based solution to the problem of a person's unjustified inaccessibility to their private information.
Yuri Gurevich   +2 more
openaire   +2 more sources

Some Results on Inverse Scattering [PDF]

open access: yes, 2007
A review of some of the author's results in the area of inverse scattering is given. The following topics are discussed: 1) Property $C$ and applications, 2) Stable inversion of fixed-energy 3D scattering data and its error estimate, 3) Inverse ...
Ramm, A. G.
core   +8 more sources

Mathematical Formulation of Dmh-Based Inverse Optimization

open access: yesFrontiers in Oncology, 2014
Purpose: To introduce the concept of dose-mass based inverse optimization for radiotherapy applications.Materials and Methods: Mathematical derivation of the dose-mass based formalism is presented. This mathematical representation is compared to the most
Ivaylo eMihaylov, Eduardo eMoros
doaj   +1 more source

User's guide to PHREEQC (Version 2)-a computer program for speciation, batch-reaction, one-dimensional transport, and inverse geochemical calculations

open access: yes, 1999
PHREEQC version 2 is a computer program written in the C programming language that is designed to perform a wide variety of low-temperature aqueous geochemical calculations. PHREEQC is based on an ion-association aqueous model and has capabilities for (1)
D. L. Parkhurst, C. Appelo
semanticscholar   +1 more source

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