41 citations · 300 across the 36 of their papers we have counts for
37 papers
Envy-Free Chore Allocation with Unit Subsidies under Negative Dichotomous Valuations
Mainak Sarkar, Soumyarup Sadhukhan
We study the allocation of indivisible chores with subsidies under negative dichotomous valuations, where the marginal disutility of every chore is either zero or one. This is the…
Strategy-Proof Probabilistic Social Choice Correspondences under Conditional Expected Utility
Madhuparna Karmokar, Ujjwal Kumar, Soumyarup Sadhukhan
We study unanimous and strategy-proof probabilistic social choice correspondences (PSCCs), where the selected set of alternatives is interpreted as an interim outcome, and agents e…
A characterization of strategy-proof probabilistic assignment rules
Sai Praneeth Donthu, Souvik Roy, Soumyarup Sadhukhan +1
We study the classical probabilistic assignment problem, where finitely many indivisible objects are to be probabilistically or proportionally assigned among an equal number of age…
The Game of Graph Nim on graphs with four edges
Sayar Karmakar, Moumanti Podder, Souvik Roy +1
This work is concerned with the study of the Game of Graph Nim -- a class of two-player combinatorial games -- on graphs with edges. To each edge of such a graph is assigned a…
Neutrino fog in the light dark sector: the role of isospin violation
Víctor Martín Lozano, Shankar Pramanik, Soumya Sadhukhan +1
Dark matter (DM) direct detection is now standing at an interesting juncture, where the Standard Model (SM) neutrino background and the upper bound on the DM signal cross section a…
On Probabilistic Assignment Rules
Sreedurga Gogulapati, Yadati Narahari, Souvik Roy +1
We study the classical assignment problem with initial endowments in a probabilistic framework. In this setting, each agent initially owns an object and has strict preferences over…
Dark matter as the source of neutrino mass: theory overview and experimental prospects
Ivania M. Ávila, Anirban Karan, Sanjoy Mandal +2
We review theoretical frameworks in which small neutrino masses arise radiatively through interactions with a dark sector that also accounts for cosmological dark matter (DM). A pr…
Percolation games on rooted, edge-weighted random trees
Sayar Karmakar, Moumanti Podder, Souvik Roy +1
Consider a rooted Galton-Watson tree , to each of whose edges we assign, independently, a weight that equals with probability , with probability and …
Viability of Boosted Light Dark Matter in a Two-Component Scenario
Arindam Basu, Amit Chakraborty, Nilanjana Kumar +1
We study the boosted dark matter (BDM) scenario in a two-component model. We consider a neutrinophilic two-Higgs doublet model (2HDM), which consists of one extra Higgs doublet…
Phenomenological profile of scotogenic fermionic dark matter
Anirban Karan, Soumya Sadhukhan, José W. F. Valle
We consider the possibility that neutrino masses arise from the exchange of dark matter states. We examine in detail the phenomenology of fermionic dark matter in the singlet-tripl…
Dynamical scoto-seesaw mechanism with gauged
Julio Leite, Soumya Sadhukhan, José W. F. Valle
We propose a dynamical scoto-seesaw mechanism using a gauged symmetry. Dark matter is reconciled with neutrino mass generation, in such a way that the atmospheric scale arise…
The spread of an epidemic: a game-theoretic approach
Sayar Karmakar, Moumanti Podder, Souvik Roy +1
We introduce and study a model stemming from game theory for the spread of an epidemic throughout a given population. Each agent is allowed to choose an action whose value dictates…
Phase transition in percolation games on rooted Galton-Watson trees
Sayar Karmakar, Moumanti Podder, Souvik Roy +1
We study the bond percolation game and the site percolation game on the rooted Galton-Watson tree with offspring distribution . We obtain the probabilities of win, loss an…
Characterization of Group-Fair Social Choice Rules under Single-Peaked Preferences
Gogulapati Sreedurga, Soumyarup Sadhukhan, Souvik Roy +1
We study fairness in social choice settings under single-peaked preferences. Construction and characterization of social choice rules in the single-peaked domain has been extensive…
Nash Welfare Guarantees for Fair and Efficient Coverage
Siddharth Barman, Anand Krishna, Y. Narahari +1
We study coverage problems in which, for a set of agents and a given threshold , the goal is to select subsets (of the agents) that, while satisfying combinatorial constrain…
Light Dark Matter Detection and Neutrino Floor: Role of Anomalous
Kuldeep Deka, Soumya Sadhukhan, Manvinder Pal Singh
In this work, we explore the impact of dark matter (DM) relic density and direct detection constraints on a GeV scale DM in the context of recent anomalous muon magnetic moment $(g…
Achieving Envy-Freeness with Limited Subsidies under Dichotomous Valuations
Siddharth Barman, Anand Krishna, Y. Narahari +1
We study the problem of allocating indivisible goods among agents in a fair manner. While envy-free allocations of indivisible goods are not guaranteed to exist, envy-freeness can…
Leptogenesis in an anomaly-free extension with higher-dimensional operators
Kuldeep Deka, Tanumoy Mandal, Ananya Mukherjee +1
We explore an anomaly-free gauge extended beyond the Standard model (BSM) framework, to account for the baryon asymmetry of the Universe, along with arranging for…
Probabilistic Fixed Ballot Rules and Hybrid Domains
Shurojit Chatterji, Souvik Roy, Soumyarup Sadhukhan +2
We study a class of preference domains that satisfies the familiar properties of minimal richness, diversity and no-restoration. We show that a specific preference restriction, hyb…
Charged Higgs effects in IceCube: PeV events and NSIs
Ujjal Kumar Dey, Newton Nath, Soumya Sadhukhan
Extensions of the Standard Model with charged Higgs, having a non-negligible coupling with neutrinos, can have interesting implications vis-à-vis neutrino experiments. Such models…
Emergent 2HDM in LSS Little-Higgs: Musings from Flavor and Electroweak Physics
Nilanjana Kumar, Soumya Sadhukhan
The low energy effective theory ( TeV) of the little-Higgs model with , as proposed by Low, Skiba and Smith (LSS), exhibits a two-Higgs doublet model (2HDM) stru…
Neutrino Floor in Leptophilic Models: Modification in
Soumya Sadhukhan, Manvinder Pal Singh
In this work, we investigate the beyond standard model (BSM) impact of leptophilic U(1) models, namely , and on coherent elastic…
Neutrino and phenomenology in an anomaly-free extension: role of higher-dimensional operators
Debajyoti Choudhury, Kuldeep Deka, Tanumoy Mandal +1
We consider an anomaly-free extension of the Standard Model with three right-handed neutrinos (RHNs) and two complex scalars, wherein the charge assignments preclud…
Discussing 125 GeV and 95 GeV excess in Light Radion Model
Divya Sachdeva, Soumya Sadhukhan
Even if the LHC observations are consistent with the Standard model (SM), current LHC results are not precise enough to rule out the presence of new physics. Taking a contrarian vi…