A new Combinatorial Ricci curvature and Laplacian operators for grayscale images are introduced and tested on 2D synthetic, natural and medical images. Analogue formulae for voxels are also obtained. These notions are based upon more general concepts developed by R. Forman. Further applications, in particular a fitting Ricci flow, are discussed.

published by dadickin on Mon, 09/08/2014 8:55am Title Analysis of transcription factor remodeling in phase II gene expression with curcumin. Publication Type Journal Article Year of Publication 2004 Authors Dickinson, DA, Iles, KE, Wigley, AF, Forman, HJay Journal Methods Enzymol Volume 378 Pagination 302-18 Date Published 2004 ISSN 0076-6879

Resumen. Las colocaciones son pares de palabras de contenido que forman las relaciones sintácticas de dependencia razonables, directamente o a través de palabras funcionales. Tales pares tienden usarse en los textos más frecuentemente de lo esperado por casualidad. El texto en lenguaje natural consiste casi totalmente de tales colocaciones. La información de las palabras que forman colocaciones...

Landscape ecology is an emerging branch of science, incorporating a multitude of principles and theories. Landscapes can be loosely defined as ecosystems occurring over an area in a similar form (Forman, 1995). This science includes such aspects as scale, the spatial configuration of the landscape, energy flows within the system, the boundaries, and the heterogeneity within the system (Wiens, 1...

In this paper, three examples of parallel programming with multiparty interactions are presented. Interacting processes (IP) with multiparty interactions are a programming model for distributed and reactive applications proposed by N. Frances and I. R. Forman 1]. The purpose of this paper is to demonstrate through these examples that IP model is extremely suitable for parallel programming.