Optimal Flux Densities for Linear Mappings and the Multiscale Geometry of Structured Deformations

Verfasser / Beitragende:
[David Owen, Roberto Paroni]
Ort, Verlag, Jahr:
2015
Enthalten in:
Archive for Rational Mechanics and Analysis, 218/3(2015-12-01), 1633-1652
Format:
Artikel (online)
ID: 605515883
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024 7 0 |a 10.1007/s00205-015-0890-x  |2 doi 
035 |a (NATIONALLICENCE)springer-10.1007/s00205-015-0890-x 
245 0 0 |a Optimal Flux Densities for Linear Mappings and the Multiscale Geometry of Structured Deformations  |h [Elektronische Daten]  |c [David Owen, Roberto Paroni] 
520 3 |a We establish the unexpected equality of the optimal volume density of total flux of a linear vector field $${x \longmapsto Mx}$$ x ⟼ M x and the least volume fraction that can be swept out by submacroscopic switches, separations, and interpenetrations associated with the purely submacroscopic structured deformation (i, I+M). This equality is established first by identifying a dense set $${\mathcal{S}}$$ S of $${N{\times}N}$$ N × N matrices M for which the optimal total flux density equals |trM|, the absolute value of the trace of M. We then use known representation formulae for relaxed energies for structured deformations to show that the desired least volume fraction associated with (i, I+M) also equals |trM|. We also refine the above result by showing the equality of the optimal volume density of the positive part of the flux of $${x \longmapsto Mx}$$ x ⟼ M x and the volume fraction swept out by submacroscopic separations alone, with common value (trM)+. Similarly, the optimal volume density of the negative part of the flux of $${x \longmapsto Mx}$$ x ⟼ M x and the volume fraction swept out by submacroscopic switches and interpenetrations are shown to have the common value (trM)−. 
540 |a Springer-Verlag Berlin Heidelberg, 2015 
700 1 |a Owen  |D David  |u Department of Mathematical Sciences, Carnegie Mellon University, 15213, Pittsburgh, PA, USA  |4 aut 
700 1 |a Paroni  |D Roberto  |u DADU, Università degli Studi di Sassari, Palazzo del Pou Salit, Piazza Duomo, 07041, Alghero, Italy  |4 aut 
773 0 |t Archive for Rational Mechanics and Analysis  |d Springer Berlin Heidelberg  |g 218/3(2015-12-01), 1633-1652  |x 0003-9527  |q 218:3<1633  |1 2015  |2 218  |o 205 
856 4 0 |u https://doi.org/10.1007/s00205-015-0890-x  |q text/html  |z Onlinezugriff via DOI 
898 |a BK010053  |b XK010053  |c XK010000 
900 7 |a Metadata rights reserved  |b Springer special CC-BY-NC licence  |2 nationallicence 
908 |D 1  |a research-article  |2 jats 
949 |B NATIONALLICENCE  |F NATIONALLICENCE  |b NL-springer 
950 |B NATIONALLICENCE  |P 856  |E 40  |u https://doi.org/10.1007/s00205-015-0890-x  |q text/html  |z Onlinezugriff via DOI 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Owen  |D David  |u Department of Mathematical Sciences, Carnegie Mellon University, 15213, Pittsburgh, PA, USA  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Paroni  |D Roberto  |u DADU, Università degli Studi di Sassari, Palazzo del Pou Salit, Piazza Duomo, 07041, Alghero, Italy  |4 aut 
950 |B NATIONALLICENCE  |P 773  |E 0-  |t Archive for Rational Mechanics and Analysis  |d Springer Berlin Heidelberg  |g 218/3(2015-12-01), 1633-1652  |x 0003-9527  |q 218:3<1633  |1 2015  |2 218  |o 205