Convergent Approximations in Parabolic Variationally Inequalities. I. One-Phase Stefan Problems.

Abstract

Many physical phenomena are modelled by inequalities rather than equations. In this report we examine a dynamic, or parabolic inequality, which characterizes the change of phase of a substance, e.g., ice melting, under certain assumptions. We obtain rates of convergence for certain approximation schemes which separately discretize time and space. The rates, as well as one of the schemes, appear to constitute new results in a subject which is still rather undeveloped. Subsequent investigations are also contemplated for inequalities related to different physical models.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1980
Accession Number
ADA083814

Entities

People

  • Joseph W. Jerome

Organizations

  • University of Wisconsin–Madison

Tags

DTIC Thesaurus Topics

  • Abstracts
  • Convex Sets
  • Equations
  • Finite Element Analysis
  • Heat Energy
  • Heat Of Fusion
  • Hypotheses
  • Inequalities
  • Latent Heat
  • Mathematics
  • Melting
  • Numbers
  • Numerical Analysis
  • Phase Transformations
  • Standards
  • Theorems
  • United States

Fields of Study

  • Mathematics

Readers

  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Operations Research
  • Theoretical Analysis.

Technology Areas

  • Space