Surface current density K: an introduction

K-THEORY. An elementary introduction

The purpose of these notes is to give a feeling of “K-theory”, a new interdisciplinary subject within Mathematics. This theory was invented by Alexander Grothendieck 1[BS] in the 50’s in order to solve some difficult problems in Algebraic Geometry (the letter “K” comes from the German word “Klassen”, the mother tongue of Grothendieck. This idea of K-theory has invaded other parts of Mathematics...

An Introduction to K-theory

Effect of Current Density and Surface Preparation of Steel on Morphology and Texture of Zinc Electrodeposits

On electropolished steel at low current densities, morphology and texture of electrodeposited zinc were investigated. Zinc coating is consisted of hexagonal crystallites laid on each other to produce packets. These packets are of different sizes and are stacked in different orientations to construct a homogeneous coating on steel substrate. This coating does not have texture, i.e., it has a ran...

Effect of Current Density and Surface Preparation of Steel on Morphology and Texture of Zinc Electrodeposits

On electropolished steel at low current densities, morphology and texture of electrodeposited zinc were investigated. Zinc coating is consisted of hexagonal crystallites laid on each other to produce packets. These packets are of different sizes and are stacked in different orientations to construct a homogeneous coating on steel substrate. This coating does not have texture, i.e., it has a ran...

An Introduction to Complex K-Theory

Complex K-Theory is an extraordinary cohomology theory defined from the complex vector bundles on a space. This essay aims to provide a quick and accessible introduction to K-theory, including how to calculate with it, and some of its additional features such as characteristic classes, the Thom isomorphism and Gysin maps.