In this paper, we show that a matrix that maps ℓ′′ into ℓ′′ can be obtained from any RH-regular matrix by the deletion of rows. Also a four dimensional conservative matrix can be obtained by the deletion of rows from a matrix that preserves boundedness. We will use these techniques to derive a sufficient condition for a four dimensional matrix to sum an unbounded sequence
AbstractThe class of σ-regular matrices was defined and characterized by Schaefer [P. Schaefer, Infi...
AbstractIt is shown that every complex n × n matrix T is the product of four quadratic matrices. Mor...
This paper introduces a notion of decomposition and completion of sum-of-squares (SOS) matrices. We ...
It is proved that a matrix that maps ℓ1 into ℓ1 can be obtained from any regular matrix by the delet...
In this paper, we show that a matrix that maps ℓ′′ into ℓ′′ can be obtained from any RH-regular mat...
In 1981, Rath and Tripathy presented some classes of regular matrices such that every bounded seque...
The goals of this paper include the introduction of a new four-dimensional summability method constr...
AbstractWe characterize those square partial matrices whose specified entries constitute a rectangul...
AbstractA 0,±1 matrix is balanced if, in every submatrix with two nonzero entries per row and column...
AbstractA 0, ±1 matrix is balanced if, in every square submatrix with two nonzero entries per row an...
If B is a summability matrix, then the submethod Bλ is the matrix obtained by deleting a set of rows...
A 0, ±1 matrix is balanced if, in every square submatrix with two nonzero entries per row and column...
The concepts P − lim sup and P − lim inf for double sequences were introduced by Pat-terson in 1999....
Hypermatrices are defined. Elementary operations and properties are defined and discussed. A 4-ary M...
AbstractGiven a symmetric n × n matrix A and n numbers r1,…,rn, necessary and sufficient conditions ...
AbstractThe class of σ-regular matrices was defined and characterized by Schaefer [P. Schaefer, Infi...
AbstractIt is shown that every complex n × n matrix T is the product of four quadratic matrices. Mor...
This paper introduces a notion of decomposition and completion of sum-of-squares (SOS) matrices. We ...
It is proved that a matrix that maps ℓ1 into ℓ1 can be obtained from any regular matrix by the delet...
In this paper, we show that a matrix that maps ℓ′′ into ℓ′′ can be obtained from any RH-regular mat...
In 1981, Rath and Tripathy presented some classes of regular matrices such that every bounded seque...
The goals of this paper include the introduction of a new four-dimensional summability method constr...
AbstractWe characterize those square partial matrices whose specified entries constitute a rectangul...
AbstractA 0,±1 matrix is balanced if, in every submatrix with two nonzero entries per row and column...
AbstractA 0, ±1 matrix is balanced if, in every square submatrix with two nonzero entries per row an...
If B is a summability matrix, then the submethod Bλ is the matrix obtained by deleting a set of rows...
A 0, ±1 matrix is balanced if, in every square submatrix with two nonzero entries per row and column...
The concepts P − lim sup and P − lim inf for double sequences were introduced by Pat-terson in 1999....
Hypermatrices are defined. Elementary operations and properties are defined and discussed. A 4-ary M...
AbstractGiven a symmetric n × n matrix A and n numbers r1,…,rn, necessary and sufficient conditions ...
AbstractThe class of σ-regular matrices was defined and characterized by Schaefer [P. Schaefer, Infi...
AbstractIt is shown that every complex n × n matrix T is the product of four quadratic matrices. Mor...
This paper introduces a notion of decomposition and completion of sum-of-squares (SOS) matrices. We ...
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