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- Debanjan Polley, Arnab Ganguly, Anjan Barman, Rajib Kumar Mitra
- Optics letters
- 2013

We report the polarizing behavior of aligned Ni nanoparticles (NPs) having average diameter of 165±15 nm in ~210 μm thick polyvinyl alcohol (PVA) matrix in the frequency range of 0.2-1.6 THz. The NPs have been prepared via a wet chemical route and then aligned in PVA film by using an external magnetic field. When the polarization of THz electric field is… (More)

- Arnab Ganguly, Rahul Shah, Sharma V. Thankachan
- CPM
- 2015

- Sudip Biswas, Arnab Ganguly, Rahul Shah, Sharma V. Thankachan
- FSTTCS
- 2015

Document retrieval is one of the most fundamental problem in information retrieval. The objective is to retrieve all documents from a document collection that are relevant to an input pattern. Several variations of this problem such as ranked document retrieval, document listing with two patterns and forbidden patterns have been studied. We introduce the… (More)

- Arnab Ganguly, Rahul Shah, Sharma V. Thankachan
- SODA
- 2017

The fields of succinct data structures and compressed text indexing have seen quite a bit of progress over the last two decades. An important achievement, primarily using techniques based on the Burrows-Wheeler Transform (BWT), was obtaining the full functionality of the suffix tree in the optimal number of bits. A crucial property that allows the use of… (More)

- Arnab Ganguly, Sinan Azzawi, +6 authors Anjan Barman
- Scientific reports
- 2015

Interface modification for control of ultrafast magnetic properties using low-dose focused ion beam irradiation is demonstrated for bilayers of two technologically important materials: Ni81Fe19 and Pt. Magnetization dynamics were studied using an all-optical time-resolved magneto-optical Kerr microscopy method. Magnetization relaxation, precession, damping… (More)

Let S and S′ be two strings, having the same length, over a totally-ordered alphabet. We consider the following two variants of string matching. Parameterized Matching: The characters of S and S′ are partitioned into static characters and parameterized characters. The strings are a parameterized match iff the static characters match exactly, and there… (More)

- Arnab Ganguly, Wing-Kai Hon, Rahul Shah
- SWAT
- 2016

Two equal-length strings S and S′ are a parameterized-match (p-match) iff there exists a one-toone function that renames the characters in S to those in S′. Let P be a collection of d patterns of total length n characters that are chosen from an alphabet Σ of cardinality σ. The task is to index P such that we can support the following operations: search(T… (More)

- Arnab Ganguly
- 2013

The paper deals with convergence of solutions of a class of stochastic differential equations driven by infinite-dimensional semimartingales. The infinite-dimensional semimartingales considered in the paper are Hilbert-space valued. The theorems presented generalize the convergence result obtained by Wong and Zakai for stochastic differential equations… (More)

- Arnab Ganguly
- 2010

Let H be a separable Banach space. We considered the sequence of stochastic integrals {Xn− · Yn} where {Yn} is a sequence of infinite dimesnional H semimartingales and Xn are H valued cadlag processes. Assuming that {(Xn, Yn)} satisfies large deviation principle, a uniform exponential tightness condition is described under which large deviation principle… (More)