# The Shapes of Things: A Practical Guide to Differential Geometry and the Shape Derivative

## Files

## Description

Many things around us have properties that depend on their shape - for example, the drag characteristics of a rigid body in a flow. This self-contained overview of differential geometry explains how to differentiate a function (in the calculus sense) with respect to a "shape variable". This approach, which is useful for understanding mathematical models containing geometric partial differential equations (PDEs), allows readers to obtain formulas for geometric quantities (such as curvature) that are clearer than those usually offered in differential geometry texts.

Readers will learn how to compute sensitivities with respect to geometry by developing basic calculus tools on surfaces and combining them with the calculus of variations. Several applications that utilize shape derivatives and many illustrations that help build intuition are included.

## Link to Catalog

## LOC Call Number

QA174.7 .S96 W35 2015

## ISBN

9781611973952

## Publication Date

2015

## Department

Department of Mathematics

## Publisher

Society for Industrial and Applied Mathematics

## City

Philadelphia

## Recommended Citation

Walker, Shawn W., "The Shapes of Things: A Practical Guide to Differential Geometry and the Shape Derivative" (2015).