8,241 papers

cs.DM2026★ 5 cited

Counting Polyominoes, Revisited: Corrigendum and Addendum

Gill Barequet, Gil Ben-Shachar

This is a Corrigendum and Addendum to Algorithmica paper (2026) 88:51.

cs.FL2026

Pumping Constants for Infinite Alphabets

Yoav Danieli

It is well known that the pumping lemma for regular languages over finite alphabets does not extend to infinite alphabets. Instead, the generalized version of the pumping lemma for…

cs.DS2026

Tight Approximation Results for Matroid Optimization with a Linear Constraint

Ilan Doron-Arad, Hadas Shachnai, Gilad Shmerler

We study the following class of matroid optimization problems with a linear constraint (P-MOL). Given a matroid M=(E,I), two weight functions , and a threshold…

math.PR2026

Functional limiting behaviour of non-stationary marked Hawkes processes under multi-scaling high-intensity regime

Ankita Sen, Dharmaraja Selvamuthu, N. Selvaraju

This paper studies the non-stationary marked Hawkes processes in which the base intensity function is time-dependent and the kernel function is governed by an external random facto…

astro-ph.HE2026

One Precessing Jet Pair, Diverse Core-Collapse Supernova Remnant Morphologies

Jessica Braudo, Noam Soker

We produce a diverse set of observed core-collapse supernova (CCSN)-type morphologies using a precessing pair of opposite jets within the jittering-jets explosion mechanism (JJEM)…

cond-mat.quant-gas2026

Temporal Signature of Bosonic Stimulation Induced by Dark Exciton in a Two-photon Pumped Polariton Condensate

Nadav Landau, Dmitry Panna, Sarit Feldman +4

Strongly-coupled light-matter exciton-polaritons constitute an on-chip solid-state platform where the macroscopic quantum phenomenon of condensation is not only achievable at eleva…

astro-ph.HE2026

Supernova 1987A was a "failed supernova" twenty thousand years before its jet-driven explosion

Noam Soker

I show that the progenitor of supernova (SN) 1987A faded substantially and became red for hundreds of years to observers in and near the plane of the equatorial ring, because the e…

astro-ph.SR2026

EncoTESS: Age-Sensitive Encodings from Raw TESS Light Curves

Phil R. Van-Lane, Joshua S. Speagle, Ryan Cloutier +3

Main sequence stars of spectral types late F through M exhibit systematic variability in photometric light curves, particularly when they are young. Rotational modulation of starsp…

astro-ph.HE2026

Supernova remnant 0509-67.5 is consistent with an explosion inside an old planetary nebula (SNIP)

Noam Soker

I critically examine claims in the paper arXiv:2608.11978 that the double-detonation (DDet) scenario explains the type Ia supernova (SN Ia) remnant (SNR Ia) SNR 0509-67.5, and find…

math.NT2026

A Kubilius model for sieve-theoretic sequences

Ofir Gorodetsky

We bound the total variation distance in the Kubilius model for sequences with positive level of distribution. We obtain a result that we expect is qualitatively optimal. As a spec…

hep-ph2026

Direct versus resolved photons in DPS in photoproduction on proton and nuclei

B. Blok, R. Segev

We study the process of double parton scattering (DPS) associated with the photoproduction at a future Electron-Ion collider (EIC) and HERA. We show that in the case of the resolve…

cond-mat.mtrl-sci2026

Electrical Control over Volatile Mott Switching through Non-Volatile Memory Effects

Amihai Kronman, Gil Levi, Yoav Kalcheim

Vanadium Dioxide (VO2) and Vanadium Sesquioxide (V2O3) are Mott insulators that undergo an Insulator-to-Metal Transition (IMT) at ~340K and ~160K, respectively, manifested as an or…

astro-ph.GA2026

Chemical enrichment of the Perseus cluster core seen by XRISM/Resolve

XRISM Collaboration, Marc Audard, Hisamitsu Awaki +143

The intracluster medium (ICM) is rich in chemical elements, produced by core-collapse (SNcc) and Type Ia supernovae (SNIa) over the last 12 Gyr. Whereas cluster outskirts are…

physics.flu-dyn2026

Physically Consistent Outflow Boundary Conditions for Global Stability Analysis of Bluff Body Wakes

Guangyao Cui, Amit Sigawi, Michael Karp

Global linear stability analysis of bluff body wake flows is performed using the matrix-forming method based on finite-difference discretization. Particular emphasis is placed on t…

astro-ph.HE2026

Observation of A Solar Like Magnetic Reconnection Event in an AGN Corona with XRISM

Gal Vardi, Ehud Behar, Liyi Gu +14

The X-ray source in AGN is commonly referred to as the corona by analogy to stellar coronae. The similarities between the two suggest that the heating mechanism of AGN coronae is m…

astro-ph.SR2026

Simulating the convection in red super-giant stars: wobbling jets in common envelope evolution

Shlomi Hillel, Ron Schreier, Noam Soker

We use our newly constructed three-dimensional red supergiant (RSG) stellar model, which also mimics nuclear energy production and photospheric emission, to calculate the stochasti…

cs.SE2026

Know Before Fix: QA-Driven Repository Knowledge Acquisition for Software Issue Resolution

Haotian Lin, Silin Chen, Xiaodong Gu +8

LLM-based coding agents have significantly advanced automated software issue resolution, yet they remain highly prone to factual errors caused by insufficient repository understand…

cond-mat.stat-mech2026

Fluctuation theorems for autonomous work

Christopher Jarzynski, Sebastian Deffner, Saar Rahav

Classical fluctuation theorems for work have been obtained theoretically, and verified experimentally, within a non-autonomous framework in which work is performed on a system of i…

astro-ph.HE2026

Identifying a circum-jet southern ring counterpart to the northern jet of the Crab Nebula

Noam Soker

I analyze images of the Crab Nebula core-collapse supernova (CCSN) remnant in light of recent three-dimensional hydrodynamical simulations of the jittering-jets explosion mechanism…

astro-ph.HE2026

Long-lived intermittent accretion disks in the jittering jets explosion mechanism (JJEM) of core-collapse supernovae

Noam Soker

Motivated by observations of core-collapse supernova (CCSN) remnants that suggest cases where one to three energetic pairs of jets dominate the CCSN remnant morphology and, hence,…

astro-ph.HE2026

Reverberation in the Narrow Fe K Line in the Seyfert Galaxy NGC 4151 with XRISM

Jon M. Miller, Aberahmen Zoghbi, Xin Xiang +11

Emission lines that "echo" variations in the ionizing flux produced close to black holes are powerful probes of the central engine. In the Seyfert-1.5 galaxy NGC 4151, high-resolut…

cs.AI2026

Learning Filters with Certainty

Yuval Banoun, Daniel Sadoc Menasche, Ori Rottenstreich

Hash-based data structures such as Bloom filters are widely used in network systems for tasks including caching, anomaly detection, and machine learning pipelines. They typically p…

math.DS2026

Seasonal Forcing in Rock-Paper-Scissors Population Dynamics

Idan Sorin, Michael Zaks, Alexander Nepomnyashchy

We study a class of cyclic dominance models with seasonal forcing, extending the classical May-Leonard competition framework. By introducing time-periodic coefficients into the gro…

physics.flu-dyn2026★ 2 cited

Receptivity of the flow on the stagnation streamline of a blunt body in supersonic flow

Iliya Milman, Michael Karp

The receptivity of the inviscid flow on the stagnation streamline of a blunt body in supersonic flow is investigated theoretically for incoming freestream disturbances. The wave tr…