algebraic complexity theory
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10.37236/9019 ◽  
2020 ◽  
Vol 27 (3) ◽  
Author(s):  
Srinivasan Arunachalam ◽  
Péter Vrana ◽  
Jeroen Zuiddam

We compute the asymptotic induced matching number of the $k$-partite $k$-uniform hypergraphs whose edges are the $k$-bit strings of Hamming weight $k/2$, for any large enough even number $k$. Our lower bound relies on the higher-order extension of the well-known Coppersmith–Winograd method from algebraic complexity theory, which was proven by Christandl, Vrana and Zuiddam. Our result is motivated by the study of the power of this method as well as of the power of the Strassen support functionals (which provide upper bounds on the asymptotic induced matching number), and the connections to questions in tensor theory, quantum information theory and theoretical computer science.Our proof relies on a new combinatorial inequality that may be of independent interest. This inequality concerns how many pairs of Boolean vectors of fixed Hamming weight can have their sum in a fixed subspace.



2017 ◽  
Vol 62 (3) ◽  
pp. 622-652 ◽  
Author(s):  
Meena Mahajan ◽  
Nitin Saurabh


2010 ◽  
Vol 10 (11&12) ◽  
pp. 925-935
Author(s):  
Runyao Duan ◽  
Yaoyun Shi

For a multipartite quantum system of the dimension $d_1\otimes d_2\otimes\cdots\otimes d_n$, where $d_1\ge d_2\ge\cdots\ge d_n\ge2$, is there an entangled state {\em maximum} in the sense that all other states in the system can be obtained from the state through local quantum operations and classical communications (LOCC)? When $d_1\ge\Pi_{i=2}^n d_i$, such state exists. We show that this condition is also necessary. Our proof, somewhat surprisingly, uses results from algebraic complexity theory.



2000 ◽  
Vol 16 (1) ◽  
pp. 2-49 ◽  
Author(s):  
M. Aldaz ◽  
J. Heintz ◽  
G. Matera ◽  
J.L. Montaña ◽  
L.M. Pardo


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