B. Sethuraman

activity

20022014

most citedDivision Algebras and Wireless Communication

18 citations · 30 across the 8 of their papers we have counts for

collaborators

8 papers

cs.IT2014

Counterexample to the $l$ -modular Belfiore-Solé Conjecture

Anne-Maria Ernvall-Hytönen, B. A. Sethuraman

We show that the secrecy function conjecture that states that the maximum of the secrecy function of an $l$ -modular lattice occurs at $1/ l$ is false, by proving that the 4-m…

cs.IT2014★ 3 cited

Bounds of fast decodability of space time block codes, skew-Hermitian matrices, and Azumaya algebras

Grégory Berhuy, Nadya Markin, B. A. Sethuraman

We study fast lattice decodability of space-time block codes for $n$ transmit and receive antennas, written very generally as a linear combination $\sum_{i = 1}^{2 l} s_{i} A_{i}$ , where…

cs.IT2012★ 3 cited

Quotients of Orders in Cyclic Algebras and Space-Time Codes

Frederique Oggier, B. A. Sethuraman

Let $F$ be a number field with ring of integers $\Oc_F$ and $\Dc$ a division $F$ -algebra with a maximal cyclic subfield $K$ . We study rings occurring as quotients of a natural $\Oc…

math.CO2012★ 6 cited

Hilbert series of certain jet schemes of determinantal varieties

Sudhir R. Ghorpade, Boyan Jonov, B. A. Sethuraman

We consider the affine variety $Z_{2, 2}^{m, n}$ (or just " $Y$ ") of first order jets over $Z_{2}^{m, n}$ (or just " $X$ "), where $X$ is the classical determinan…

math.RA2009★ 18 cited

Division Algebras and Wireless Communication

B. A. Sethuraman

We survey the recent use of division algebras in wireless communication.

math.AG2009

Jet Schemes of the Commuting Matrix Pairs Scheme

B. A. Sethuraman, Klemen Šivic

We show that for all $k \geq 1$ , there exists an integer $N (k)$ such that for all $n \geq N (k)$ the $k$ -th order jet scheme over the commuting $n \times n$ matrix pairs scheme is reduci…