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Incidence Functions and Incidence Matrices
1968We now introduce into our structure the concept of the direction of a branch of a network. This is accomplished by means of a function called an incidence function of a set of branches. This incidence function leads to a matrix called an incidence matrix of a set of branches. Most of this Chapter is devoted to properties of such incidence matrices.
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American Association of Bovine Practitioners Conference Proceedings, 1971
First of all, why should we be concerned about internal parasites in cattle. Figures released by the United States Department of Agriculture in 1965 compared the losses over a ten-year period. Losses jumped in cattle from about 27 million dollars to about 147 million. Almost the opposite occurred in other species, and to me it indicates that up to 1965
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First of all, why should we be concerned about internal parasites in cattle. Figures released by the United States Department of Agriculture in 1965 compared the losses over a ten-year period. Losses jumped in cattle from about 27 million dollars to about 147 million. Almost the opposite occurred in other species, and to me it indicates that up to 1965
openaire +1 more source