Book review: why walls won’t work: repairing the US-Mexico divide

Today, when one thinks of the border separating the United States from Mexico, what typically comes to mind is a mutually unwelcoming zone, with violent, poverty-ridden towns on one side and an increasingly militarized network of barriers and surveillance systems on the other. In Why Walls Won’t Work, Michael Dear explains why this view is problematic and false. Those interested in one way that the discipline of border studies has developed to account for the post 9/11 context will find this book interesting and instructive; Dear’s focus on the physicality of the border Wall itself is most convincing, writes Zalfa Feghali

Enclosings of Decompositions of Complete Multigraphs in 22-Edge-Connected rr-Factorizations

A decomposition of a multigraph $G$ is a partition of its edges into subgraphs $G(1), \ldots , G(k)$. It is called an $r$-factorization if every $G(i)$ is $r$-regular and spanning. If $G$ is a subgraph of $H$, a decomposition of $G$ is said to be enclosed in a decomposition of $H$ if, for every $1 \leq i \leq k$, $G(i)$ is a subgraph of $H(i)$. Feghali and Johnson gave necessary and sufficient conditions for a given decomposition of $\lambda K_n$ to be enclosed in some $2$-edge-connected $r$-factorization of $\mu K_{m}$ for some range of values for the parameters $n$, $m$, $\lambda$, $\mu$, $r$: $r=2$, $\mu>\lambda$ and either $m \geq 2n-1$, or $m=2n-2$ and $\mu = 2$ and $\lambda=1$, or $n=3$ and $m=4$. We generalize their result to every $r \geq 2$ and $m \geq 2n - 2$. We also give some sufficient conditions for enclosing a given decomposition of $\lambda K_n$ in some $2$-edge-connected $r$-factorization of $\mu K_{m}$ for every $r \geq 3$ and $m = (2 - C)n$, where $C$ is a constant that depends only on $r$, $\lambda$ and~$\mu$.Comment: 17 pages; fixed the proof of Theorem 1.4 and other minor change

Book review: backroads pragmatists: Mexico’s melting pot and civil rights in the United States by Ruben Flores

Through deep archival research and ambitious synthesis, Backroads Pragmatists aims to illuminate how nation-building in post-revolutionary Mexico unmistakably influenced the civil rights movement and democratic politics in the United States. Zalfa Feghali is impressed by Flores’ contribution, which convincingly traces the legacy of Mexican state policies as resonating beyond Mexico’s northern border and compelling shows a narrative of friendships and intellectual relationships between social scientists in both the US and Mexico

Re-articulating the New \u3cem\u3eMestiza\u3c/em\u3e

This essay provides an overview, critique, and the beginning of a refiguration of Gloria Anzaldúa’s theorization of the new mestiza as set out in her seminal 1987 book Borderlands/La Frontera: The New Mestiza. By examining both Anzaldúa’s precursors and the articulations of hybrid identities of her contemporaries, this essay depicts the complex dynamic that characterizes the mestiza’s need to develop, beyond borders and attempts to fashion a more contemporary, transnational mestiza. Using the writing and criticism of Françoise Lionnet alongside Anzaldúa’s and other critics, and utilizing postcolonial and feminist theories, this essay hopes to provide an alternative articulation to conventional understandings of hybridity and mestizaje in contemporary thought