Home > tt2 > @qtt_tucker > kron.m

kron

PURPOSE ^

Kronecker product of two QTT_Tuckers

SYNOPSIS ^

function [c] = kron(a,b)

DESCRIPTION ^

Kronecker product of two QTT_Tuckers
   [C]=KRON(A,B) computes Kronecker product of A and B, where A and B are
   in the QTT-Tucker format


 TT-Toolbox 2.2, 2009-2012

This is TT Toolbox, written by Ivan Oseledets et al.
Institute of Numerical Mathematics, Moscow, Russia
webpage: http://spring.inm.ras.ru/osel

For all questions, bugs and suggestions please mail
ivan.oseledets@gmail.com
---------------------------

CROSS-REFERENCE INFORMATION ^

This function calls: This function is called by:

SOURCE CODE ^

0001 function [c] = kron(a,b)
0002 %Kronecker product of two QTT_Tuckers
0003 %   [C]=KRON(A,B) computes Kronecker product of A and B, where A and B are
0004 %   in the QTT-Tucker format
0005 %
0006 %
0007 % TT-Toolbox 2.2, 2009-2012
0008 %
0009 %This is TT Toolbox, written by Ivan Oseledets et al.
0010 %Institute of Numerical Mathematics, Moscow, Russia
0011 %webpage: http://spring.inm.ras.ru/osel
0012 %
0013 %For all questions, bugs and suggestions please mail
0014 %ivan.oseledets@gmail.com
0015 %---------------------------
0016 
0017 if ( isempty(a) )
0018   c=b;
0019   return
0020 elseif ( isempty(b) )
0021   c=a;
0022   return
0023 end
0024 
0025 c = qtt_tucker;
0026 c.dphys = a.dphys+b.dphys;
0027 c.tuck = cell(c.dphys, 1);
0028 c.core = kron(a.core, b.core);
0029 c.tuck(1:a.dphys) = a.tuck;
0030 c.tuck(a.dphys+1:c.dphys) = b.tuck;
0031 
0032 end

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