Non-Frobenius Spectrum-Transformation Method

Spectrum Properties of the Koopman and Frobenius-Perron Operators

Spectrum of Malignant Transformation in Marjolins Ulcer: Our Experience of This Rare Phenomenon

  Background & Objective: Chronic non healing ulcers or scar undergoing malignant transformation is a rare phenomenon with an estimated incidence of 2%. Though, numerous predisposing factors have been identified, still it is rarely diagnosed and commonly mistaken for a benign condition. The objective of this study was to verify the efficacy of the Fine Needle Aspiration Cytology/ Scrape cytolo...

Nearly Rational Frobenius Groups

In this paper, we study the structure of nite Frobenius groups whose non-rational or non-real irreducible characters are linear.

On the Eigenvalues of Positive Operators by Gian-carlo Rota

The classical theory of Frobenius-Perron concerning the distribution of eigenvalues of a matrix with non-negative elements has been variously extended to positive operators, that is, linear operators on function spaces transforming non-negative functions into non-negative functions. Since the classical work of Jentzsch (see bibliography), there have been two kinds of extensions : (a) it has bee...

A Critique on Power Spectrum – Area Fractal Method for Geochemical Anomaly Mapping

Power spectrum – area fractal (S-A fractal) method has been frequently applied for geochemical anomaly mapping. Some researchers have performed this method for separation of geochemical anomaly, background and noise and have delineated their distribution maps. In this research, surface geochemical data of Zafarghand Cu-Mo mineralization area have been utilized and some defects of S-A fractal me...