arXiv Math @arxiv_math@qoto.org

Existence of $S(2,9,369)$, new unitals of order $6$ and other Steiner systems with block length $\ge 7$ https://arxiv.org/abs/2511.20708 #mathCO

Hall's Harem Theorem with controlled sizes of cycles https://arxiv.org/abs/2511.20724 #mathCO #mathLO

The Dual of Quantifier Elimination: Boolean Elimination over C and R https://arxiv.org/abs/2511.20743 #mathLO #csLO

A note on the $L^{p}$-solvability of a strongly-coupled nonlocal system of equations https://arxiv.org/abs/2511.20772 #mathAP

The canonical symmetry reduction of string backgrounds https://arxiv.org/abs/2511.20773 #mathDG #mathph #mathMP

A derivative-free trust-region approach for Low Order-Value Optimization problems https://arxiv.org/abs/2511.20783 #mathOC #csMS

How to Expand a Self-orthogonal Code https://arxiv.org/abs/2511.17503 #mathCO #mathIT #cs.IT

Covert Communication and Key Generation Over Quantum State-Dependent Channels https://arxiv.org/abs/2511.17504 #mathIT #cs.IT

Multidimensional Widder--Arendt theorem in locally convex spaces https://arxiv.org/abs/2511.17510 #mathFA

An idempotent ring cannot be Morita equivalent to its ideal https://arxiv.org/abs/2511.17521 #mathRA

Derivations in Dialgebras Derivations and Biderivations in Dialgebras https://arxiv.org/abs/2511.17522 #mathRA

Orthogonal tripotent matrices https://arxiv.org/abs/2511.17530 #mathRA #mathOA

Global existence of smooth solution to evolutionary Faddeev model with short-pulse data https://arxiv.org/abs/2511.17534 #mathAP

Rado's Graph has no Quantum Symmetry https://arxiv.org/abs/2511.17536 #mathQA #mathOA

Some q-fractional order difference sequence spaces https://arxiv.org/abs/2511.17538 #mathFA

Variations and extensions of Croft's problem https://arxiv.org/abs/2511.17539 #mathFA

Groups acting on horocyclic products https://arxiv.org/abs/2511.16809 #mathGR #mathGT

Exceptions to the Erd\H os--Straus--Schinzel conjecture https://arxiv.org/abs/2511.16817 #mathNT

Recurrence Relations for k-Fold Nested Power Sums https://arxiv.org/abs/2511.15729 #mathCO #mathNT

A Stochastic Approach to the Definition of the Path Integral Measure https://arxiv.org/abs/2511.15772 #mathPR #mathph #mathMP