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Abstract Let 𝐺 be a graph with 𝑛 vertices and 𝑆 = 𝕂[𝑥₁, …, 𝑥𝑛] be the polynomial ring in 𝑛 variables over a field 𝕂. Assume that 𝐽(𝐺) is the cover ideal of 𝐺 and 𝐽(𝐺)⁽𝑘⁾ is its 𝑘-th ...
The Monthly publishes articles, as well as notes and other features, about mathematics and the profession. Its readers span a broad spectrum of mathematical interests, and include professional ...