Mika Mattila

activity

20112022

most citedOn the eigenvalues of combined meet and join matrices

12 citations · 19 across the 8 of their papers we have counts for

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Showing 2011Show all

2 papers · 1 filter

math.NT2011

Some properties of row-adjusted meet and join matrices

Mika Mattila, Pentti Haukkanen

Let $(P, ⪯)$ be a lattice, $S$ a finite subset of $P$ and $f_{1}, f_{2}, ..., f_{n}$ complex-valued functions on $P$ . We define row-adjusted meet and join matrices on $S$ by $(S)_{f_1,…

math.NT2011

Determinant and inverse of join matrices on two sets

Mika Mattila, Pentti Haukkanen

Let $(P, ⪯)$ be a lattice and $f$ a complex-valued function on $P$ . We define meet and join matrices on two arbitrary subsets $X$ and $Y$ of $P$ by $(X,Y)_f=(f(x_i\wedge y_j))…