Welcome to the Madison family!

Welcome Algers to the JMU family on Spirit Rock on east side of campu

Invariant Solutions to the Strominger System on Complex Lie Groups and Their Quotients

Using canonical 1-parameter family of Hermitian connections on the tangent bundle, we provide invariant solutions to the Strominger system on complex Lie groups. Both flat and non-flat cases are discussed in detail.Comment: 11 pages, comments are welcome. Updates in v2: minor typos are corrected. Updates in v3: small revisions, to be consistent with published versio

Families of sequences with good family complexity and cross-correlation measure

In this paper we study pseudorandomness of a family of sequences in terms of two measures, the family complexity ($f$-complexity) and the cross-correlation measure of order $\ell$. We consider sequences not only on binary alphabet but also on $k$-symbols ($k$-ary) alphabet. We first generalize some known methods on construction of the family of binary pseudorandom sequences. We prove a bound on the $f$-complexity of a large family of binary sequences of Legendre-symbols of certain irreducible polynomials. We show that this family as well as its dual family have both a large family complexity and a small cross-correlation measure up to a rather large order. Next, we present another family of binary sequences having high $f$-complexity and low cross-correlation measure. Then we extend the results to the family of sequences on $k$-symbols alphabet.Comment: 13 pages. Comments are welcome

Left Out: The Struggle of Newly Arrived Haitian Immigrant Youth Enrolling in New York City High Schools Through Family Welcome Centers

On April 26, 2019, CDP and Flanbwayan Haitian Literacy Project (Flanbwayan) released "Left Out: The struggle of newly arrived Haitian immigrant youth enrolling in New York City high schools through Family Welcome Centers." When immigrant high school students arrive in New York City, their high school admissions are processed through Family Welcome Centers, offices set up by the Department of Education to provide transition services for immigrants and others who are new to New York City. This process is fraught with challenges, and often gives young people little, if any, choice in what school they attend.  The report, based on over 150 surveys conducted by Flanbwayan, details the experiences of Haitian youth who enrolled in high schools though Family Welcome Centers. The research reveals significant barriers to education for Haitian immigrant students in New York City. Findings from the report include that Haitian students enrolling in school through Family Welcome Centers are not being asked about their academic preferences and interests, are being placed in schools that are incompatible with their needs and are faced with a lack of information to make informed choices about their academic futures. The report offers policy recommendations and reforms to address the systemic challenges faced by immigrant students enrolling through Family Welcome Centers

On Voisin's conjecture for zero-cycles on hyperkaehler varieties

Motivated by the Bloch-Beilinson conjectures, Voisin has made a conjecture concerning zero-cycles on self-products of Calabi-Yau varieties. We reformulate Voisin's conjecture in the setting of hyperk\"ahler varieties, and we prove this reformulated conjecture for one family of hyperk\"ahler fourfolds.Comment: 10 pages, to appear in Journal Korean Math. Soc., comments very welcome !. arXiv admin note: text overlap with arXiv:1704.01083, arXiv:1703.0399

Some cubics with finite-dimensional motive

This small note presents in any dimension a family of cubics that have finite-dimensional motive (in the sense of Kimura). As an illustration, we verify a conjecture of Voevodsky for these cubics, and a conjecture of Murre for the Fano variety of lines of these cubics.Comment: 7 pages, to appear in Boletin Soc. Mat. Mexicana, comments welcome. arXiv admin note: substantial text overlap with arXiv:1611.08820, arXiv:1611.0881