Synchronization in Complex Networks: a Comment on two recent PRL papers

I show that the conclusions of [Hwang, Chavez, Amann, & Boccaletti, PRL 94, 138701 (2005); Chavez, Hwang, Amann, Hentschel, & Boccaletti, PRL 94, 218701 (2005)] are closely related to those of previous publications.Comment: 2 page

Comment about UV regularization of basic commutators in string theories

Recently proposed by Hwang, Marnelius and Saltsidis zeta regularization of basic commutators in string theories is generalized to the string models with non-trivial vacuums. It is shown that implementation of this regularization implies the cancellation of dangerous terms in the commutators between Virasoro generators, which break Jacobi identity.Comment: LaTeX, 9 pages, no figures, submitted to Physics Letters

Asymmetric long memory GARCH: a reply to Hwang's model

Hwang (2001) proposes the FIFGARCH model to represent long memory asymmetric conditional variance. Although he claims that this model nests many previous models, we show that it does not and that the model is badly specified. We propose and alternative specification

Local positivity, multiplier ideals, and syzygies of abelian varieties

We use the language of multiplier ideals in order to relate the syzygies of an abelian variety in a suitable embedding with the local positivity of the line bundle inducing that embedding. This extends to higher syzygies a result of Hwang and To on projective normality.Comment: 10 page

Asymmetric long memory garch: a reply to hwang's model

Hwang (Econom. Lett. 71 (2001) 1) proposes the FIFGARCH model to represent long memory asymmetric conditional variances. However, the model is badly specified and does not nest some fractionally integrated heteroskedastic models previously proposed. We suggest an alternative specification and illustrate the results with simulated data.Publicad

Oral History Interview with Hwang Soo Chiat: Conceptualising SMU

This is an abridged version of the original interview. Please contact the Library at [email protected] for access to the full version of the transcript and/or audio recording.</p

ISSF 2017 Reflections

My weeklong journey in Busan came with disbelief: five-star service, global networking, and a warm, fun-loving tour guide I’ll never forget, Kiwook Hwang. On the night I arrived, I was missing a towel, a poster, and a warm meal, but the Korean Science Academy took care of me and assured I had everything I needed and more (e.g. snacks, cold water bottles, Wi Fi) to live comfortably for the next-week