## A class of conservative four-dimensional matrices.(English)Zbl 1132.40002

Summary: The concepts $$P$$-limsup and $$P$$-liminf for double sequences were introduced by Patterson in 1999. In this paper, we study some new inequalities related to these concepts by using the RH-conservative four-dimensional matrices.

### MSC:

 40B05 Multiple sequences and series 40C05 Matrix methods for summability
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### References:

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