An Elementary Characterization of the Orders of Non-Abelian Groups

An Elementary Characterization of the Orders of Non-Abelian Groups

Date: 2011
Creator: Anghel, Nicolae
Description: 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.
Contributing Partner: UNT College of Arts and Sciences
On a Family of Iterated Integrals

On a Family of Iterated Integrals

Date: 2013
Creator: Anghel, Nicolae
Description: This article discusses a family of iterated integrals. Abstract: In this note we generalize an iterated integral identity proposed at a Putnam competition in 1941.
Contributing Partner: UNT College of Arts and Sciences
Generalizarea problemei 0:59

Generalizarea problemei 0:59

Date: 1980
Creator: Anghel, Nicolae
Description: This note extends a certain combinatorics problem of I. Tomescu.
Contributing Partner: UNT College of Arts and Sciences
SL₂-Polynomial Invariance

SL₂-Polynomial Invariance

Date: 1998
Creator: Anghel, Nicolae
Description: 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.
Contributing Partner: UNT College of Arts and Sciences
O generalizare a problemei piesei de 5 lei a lui Ţiţeica

O generalizare a problemei piesei de 5 lei a lui Ţiţeica

Date: November 2012
Creator: Anghel, Nicolae
Description: The '5 lei coin' problem of Titeica is generalized to circles of arbitrary radii.
Contributing Partner: UNT College of Arts and Sciences
Varietăţi Grassmanniene Mixte

Varietăţi Grassmanniene Mixte

Date: 1982
Creator: Anghel, Nicolae
Description: 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.
Contributing Partner: UNT College of Arts and Sciences
The Essential Uniqueness of the Connes-Morley Theorem

The Essential Uniqueness of the Connes-Morley Theorem

Date: 2006
Creator: Anghel, Nicolae
Description: Article on the essential uniqueness of the Connes-Morley theorem.
Contributing Partner: UNT College of Arts and Sciences
On the First Vafa-Witten Bound for Two-Dimensional Tori

On the First Vafa-Witten Bound for Two-Dimensional Tori

Date: 2000
Creator: Anghel, Nicolae
Description: This article discusses the first Vafa-Witten bound for two-dimensional tori.
Contributing Partner: UNT College of Arts and Sciences
Projecting on Polynomial Dirac Spinors

Projecting on Polynomial Dirac Spinors

Date: June 2006
Creator: Anghel, Nicolae
Description: In this paper, the authors adapt Axler and Ramey's method of constructing the harmonic part of a homogeneous polynomial to the Fischer decomposition associated to Dirac operators acting on polynomial spinors.
Contributing Partner: UNT College of Arts and Sciences
Sume calculabile prin serii de puteri

Sume calculabile prin serii de puteri

Date: 2004
Creator: Anghel, Nicolae
Description: This article investigates an efficient way of evaluating sums and series, based on a result of Abel applied to associated power series.
Contributing Partner: UNT College of Arts and Sciences
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