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Generalizarea problemei 0:59
This note extends a certain combinatorics problem of I. Tomescu.
Date:
1980
Creator:
Anghel, Nicolae
Object Type:
Article
System:
The UNT Digital Library
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
Object Type:
Article
System:
The UNT Digital Library
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
Object Type:
Article
System:
The UNT Digital Library
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
Object Type:
Article
System:
The UNT Digital Library
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
Object Type:
Article
System:
The UNT Digital Library
Lie Generators for Semigroups of Transformations on a Polish Space
This article characterizes the infinitesimal generators of semigroups of linear transformations.
Date:
August 27, 1993
Creator:
Dorroh, J. R. & Neuberger, J. W.
Object Type:
Article
System:
The UNT Digital Library
Complex Continued Fractions With Restricted Entries
This article studies special infinite iterated function systems derived from complex continued fraction expansions with restricted entries.
Date:
October 19, 1993
Creator:
Hanus, Pawel & Urbański, Mariusz
Object Type:
Article
System:
The UNT Digital Library
Reflectionless Boundary Propagation Formulas for Partial Wave Solutions to the Wave Equation
This article considers solutions to the wave equation in 3+1 spacetime dimensions whose data is compactly supported at some initial time.
Date:
November 28, 1995
Creator:
Navarro, Jaime & Warchall, Henry A.
Object Type:
Article
System:
The UNT Digital Library
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
Object Type:
Article
System:
The UNT Digital Library
Numerical Calculation of Singularities for Ginzburg-Landau Functionals
This article gives results of numerical calculations of asymptotic behavior of critical points of a Ginzburg-Landau functional.
Date:
June 18, 1997
Creator:
Neuberger, J. W. & Renka, R. J.
Object Type:
Article
System:
The UNT Digital Library
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
Object Type:
Article
System:
The UNT Digital Library
Subsequences and Category
This article discusses divergences of a sequence of functions and its set of subsequences.
Date:
July 21, 1998
Creator:
Kallman, Robert R.
Object Type:
Article
System:
The UNT Digital Library
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
Object Type:
Article
System:
The UNT Digital Library
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
Object Type:
Article
System:
The UNT Digital Library
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
Object Type:
Article
System:
The UNT Digital Library
DP1 and Completely Continuous Operators
This article demonstrates a relationship between the Dunford-Pettis property and the DP1 property with a similar relationship for vector-valued continuous function spaces.
Date:
February 11, 2003
Creator:
Bator, Elizabeth M. & Slavens, Dawn R.
Object Type:
Article
System:
The UNT Digital Library
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
Object Type:
Article
System:
The UNT Digital Library
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
Object Type:
Article
System:
The UNT Digital Library
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
Object Type:
Article
System:
The UNT Digital Library
The essential uniqueness of the Connes-Morley theorem
Article on the essential uniqueness of the Connes-Morley theorem.
Date:
2006
Creator:
Anghel, Nicolae
Object Type:
Article
System:
The UNT Digital Library
Projecting on Polynomial Dirac Spinors
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.
Date:
June 2006
Creator:
Anghel, Nicolae
Object Type:
Paper
System:
The UNT Digital Library
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
Object Type:
Article
System:
The UNT Digital Library
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
Object Type:
Article
System:
The UNT Digital Library
Newton’s Method in the Context of Gradients
This article gives a common theoretical treatment for gradient and Newton type methods for general classes of problems.
Date:
September 24, 2007
Creator:
Karátson, János & Neuberger, J. W.
Object Type:
Article
System:
The UNT Digital Library