Resource Type

117 Matching Results

Results open in a new window/tab.

Asupra structurii grupurilor abeliene finite (open access)

Asupra structurii grupurilor abeliene finite

Article presenting a direct elementary proof to a classical result regarding the structure of finite abelian groups as products of descending cyclic groups.
Date: 2007
Creator: Anghel, Nicolae
System: The UNT Digital Library
An elementary characterization of the orders of non-abelian groups (open access)

An elementary characterization of the orders of non-abelian groups

In this article, the author presents an elementary proof of a result due to Dickson characterizing those integers n admitting non-abelian groups of order n.
Date: 2011
Creator: Anghel, Nicolae
System: The UNT Digital Library
Asupra unei probleme de loc geometric a lui A. Dafina (open access)

Asupra unei probleme de loc geometric a lui A. Dafina

Article generalizing a certain geometric locus problem due to A. Dafina.
Date: 2003
Creator: Anghel, Nicolae
System: The UNT Digital Library
Asupra sumelor de puteri asemenea (open access)

Asupra sumelor de puteri asemenea

Article addressing, from a historical perspective, Newton's sums of like powers of natural numbers.
Date: February 2005
Creator: Anghel, Nicolae
System: The UNT Digital Library
Generalizarea problemei 0:59 (open access)

Generalizarea problemei 0:59

This note extends a certain combinatorics problem of I. Tomescu.
Date: 1980
Creator: Anghel, Nicolae
System: The UNT Digital Library
O generalizare a problemei piesei de 5 lei a lui Ţiţeica (open access)

O generalizare a problemei piesei de 5 lei a lui Ţiţeica

The '5 lei coin' problem of Titeica is generalized to circles of arbitrary radii.
Date: 2012
Creator: Anghel, Nicolae
System: The UNT Digital Library
Legătura dintre sumele Stieltjes şi sumele simetrice elementare (open access)

Legătura dintre sumele Stieltjes şi sumele simetrice elementare

Article discussing studies of the relationship between the Stieltjes sums and the elementary symmetric sums.
Date: February 2012
Creator: Anghel, Nicolae
System: The UNT Digital Library
Sume calculabile prin serii de puteri (open access)

Sume calculabile prin serii de puteri

This article investigates an efficient way of evaluating sums and series, based on a result of Abel applied to associated power series.
Date: 2004
Creator: Anghel, Nicolae
System: The UNT Digital Library
O demonstratie directă a faptului că L1 (X, B, μ) verifică principiul tare al maximului modulului (open access)

O demonstratie directă a faptului că L1 (X, B, μ) verifică principiul tare al maximului modulului

Article proposing a new direct proof of the fact that L^1 verifies the strong maximum principle, i.e., any analytic map from the complex unit disk into L^1, constant in norm, must be constant.
Date: 1989
Creator: Anghel, Nicolae
System: The UNT Digital Library
An abstract index theorem on non-compact Riemannian manifolds (open access)

An abstract index theorem on non-compact Riemannian manifolds

Article on an abstract index theorem on non-compact Riemannian manifolds.
Date: 1993
Creator: Anghel, Nicolae
System: The UNT Digital Library
On Bär's Conformal Lower Bound for the Spectrum of Generalized Dirac Operators (open access)

On Bär's Conformal Lower Bound for the Spectrum of Generalized Dirac Operators

Article discussing Bär's conformal lower bound for the spectrum of generalized Dirac operators.
Date: 2000
Creator: Anghel, Nicolae
System: The UNT Digital Library
On a family of iterated integrals (open access)

On a family of iterated integrals

This article discusses a family of iterated integrals and generalizing an iterated integral identity proposed at a Putnam competition in 1941.
Date: 2013
Creator: Anghel, Nicolae
System: The UNT Digital Library
Projecting on polynomial solutions of second order partial differential operators (open access)

Projecting on polynomial solutions of second order partial differential operators

Article discussing projecting on polynomial solutions of second order partial differential operators.
Date: June 2007
Creator: Anghel, Nicolae
System: The UNT Digital Library
Varietăţi Grassmanniene Mixte (open access)

Varietăţi Grassmanniene Mixte

This article discusses mixed Grassmann manifolds. Abstract: Se construieşte varietea grassmanniană modelată intr-un spaţiu Banach mixt, situaţie ce generalizează simultan conceptele grassmanniene real şi complex.
Date: 1982
Creator: Anghel, Nicolae
System: The UNT Digital Library
On the first Vafa-Witten bound for two-dimensional tori (open access)

On the first Vafa-Witten bound for two-dimensional tori

This article discusses the first Vafa-Witten bound for two-dimensional tori.
Date: 2000
Creator: Anghel, Nicolae
System: The UNT Digital Library
On the constructibility with ruler and compass of a minimum chord in a parabola (open access)

On the constructibility with ruler and compass of a minimum chord in a parabola

Article on the constructibility with ruler and compass of a minimum chord in a parabola. The author gives a constructive description of all the points inside a parabola admitting a minimum chord of fixed direction.
Date: 1997
Creator: Anghel, Nicolae
System: The UNT Digital Library
The Levi problem on mixed manifolds (open access)

The Levi problem on mixed manifolds

Article discussing the Levi problem on mixed manifolds. This article gives a new proof that the problem of Levi, to mixed varieties have a solution in the sense that every pseudoconvex closely mixed variety, with enough real global morphisms, is a variety of Cartan.
Date: 1984
Creator: Anghel, Nicolae
System: The UNT Digital Library
The essential uniqueness of the Connes-Morley theorem (open access)

The essential uniqueness of the Connes-Morley theorem

Article on the essential uniqueness of the Connes-Morley theorem.
Date: 2006
Creator: Anghel, Nicolae
System: The UNT Digital Library
On Morley's miracle theorem (open access)

On Morley's miracle theorem

Article on Morley's miracle theorem. The authors use work by A. Connes to explore possible generalizations of Morley's trisector theorem to triangles in arbitrary value fields.
Date: 2004
Creator: Anghel, Nicolae
System: The UNT Digital Library
SL₂-polynomial invariance (open access)

SL₂-polynomial invariance

Article on SL₂-polynomial invariance. The purpose of this article is to describe completely, in a constructive way, the structure of these invariant polynomials in the particular case n = 2, for an arbitrary field k.
Date: 1998
Creator: Anghel, Nicolae
System: The UNT Digital Library
Interpreting genomic data via entropic dissection (open access)

Interpreting genomic data via entropic dissection

Article on interpreting genomic data via entropic dissection.
Date: October 3, 2012
Creator: Azad, Rajeev K. & Li, Jing
System: The UNT Digital Library
Detecting Evolutionary Strata on the Human X Chromosome in the Absence of Gametologous Y-Linked Sequences (open access)

Detecting Evolutionary Strata on the Human X Chromosome in the Absence of Gametologous Y-Linked Sequences

Article on detecting evolutionary strata on the human X chromosome in the absence of gametologous Y-linked sequences.
Date: September 9, 2013
Creator: Pandey, Ravi Shanker; Sayres, Melissa A. Wilson & Azad, Rajeev K.
System: The UNT Digital Library
Generalization of Entropy Based Divergence Measures for Symbolic Sequence Analysis (open access)

Generalization of Entropy Based Divergence Measures for Symbolic Sequence Analysis

Article on the generalization of entropy based divergence measures for symbolic sequence analysis.
Date: September 17, 2013
Creator: Ré, Miguel A. & Azad, Rajeev K.
System: The UNT Digital Library
An inductive proof of the Cayley-Hamilton theorem (open access)

An inductive proof of the Cayley-Hamilton theorem

In this article, the author investigates a computational proof of the Cayley-Hamilton theroem, based on induction.
Date: July 2014
Creator: Anghel, Nicolae
System: The UNT Digital Library