archive

123 papers in math.GN · page 3

101. 💻 cs.CG 2023-09-07 reviewed
     Antipode-free boundaries reduce spherical point queries to planar ones

     On the Reduction of the Spherical Point-in-Polygon Problem for Antipode-Excluding Spherical Polygons

     Ziqiang Li +1
102. 🧮 math.CO 2023-06-21 reviewed
     Floppy graph metrics extend to full metrics when missing edges are countable

     Game extensions of floppy graph metrics

     Taras Banakh +1
103. 🧮 math.GN 2023-05-12 reviewed
     Banakh spaces realize any distance set without embedding in the reals

     Banakh spaces and their geometry

     Taras Banakh
104. 🧮 math.GN 2023-03-15 reviewed
     P(ω)/fin contains subalgebras ordered like subsets of the continuum

     Many subalgebras of $\mathcal{P}(\omega)/\mathit{fin}$

     Klaas Pieter Hart
105. 🧮 math.GN 2022-09-22 reviewed
     Machine space acts as weak exponential for any presented space

     Machine Space I: Weak exponentials and quantification over compact spaces

     Peter F. Faul +1
106. 🧮 math.GT 2021-03-12 reviewed
     Ribbon knot Alexander polynomial factors as A(t) A(1/t) from singularities

     Alexander polynomials of ribbon knots and virtual knots

     Sheng Bai
107. 🧮 math.GN 2019-07-26 reviewed
     Complete spaces match homotopy type of simplicial inverse limits

     Inverse systems with simplicial bonding maps and cell structures

     Wojciech D\k{e}bski +3
108. 🧮 math.LO 2019-07-23 reviewed
     Splitting chains exist independently of ZFC

     Splitting chains, tunnels and twisted sums

     F\'elix Cabello S\'anchez +4
109. 🧮 math.GN 2019-07-20 reviewed
     Ps-normal spaces defined via bijections preserving pseudocompact homeomorphisms

     $Ps$-normal and $Ps$-Tychonoff spaces

     Sagarmoy Bag +2
110. 🧮 math.GT 2019-07-19 reviewed
     Parity polynomial blocks odd-crossing unknotting for virtual knots

     Virtual Parity Alexander Polynomial

     Heather A. Dye +1
111. 🧮 math.GN 2019-07-19 reviewed
     Minimal-complexity universal sets exist for null and meager ideals

     Universal sets for ideals

     Aleksander Cie\'slak +1
112. 🧮 math.GN 2019-07-18 reviewed
     c-cc sigma-ideals are tall

     On some relations between properties of invariant $\sigma$-ideals in Polish spaces

     Marcin Michalski
113. 🧮 math.GN 2019-07-18 reviewed
     Any real set contains a full subset avoiding rational distances

     A note on sets avoiding rational distances

     Marcin Michalski
114. 🧮 math.GN 2019-07-15 reviewed
     Some sober-space properties survive in three weaker versions

     On some kinds of weakly sober spaces

     Xinpeng Wen +1
115. 🧮 math.GN 2019-07-11 reviewed
     Strong selective separability holds in all T3 spaces without isolates

     On Ramsey properties, function spaces, and topological games

     Steven Clontz +1
116. 🧮 math.GN 2019-07-10 reviewed
     Smyth powerspace is core-compact iff X is locally compact

     Core-compactness of Smyth powerspaces

     Zhenchao Lyu +1
117. 🧮 math.GN 2019-07-09 reviewed
     Bound on Gδ-modification unifies two cardinal inequalities

     A common extension of Arhangel'skii's Theorem and the Hajnal-Juhasz inequality

     Angelo Bella +1
118. 🧮 math.GN 2019-07-07 reviewed
     Any two hairy Cantor sets in the plane are ambiently homeomorphic

     Hairy Cantor sets

     Davoud Cheraghi +1
119. 🧮 math.DS 2019-07-04 reviewed
     Residual conjugacy classes carry shadowing on plane continua

     Generic homeomorphisms with shadowing of one-dimensional continua

     Alfonso Artigue +1
120. 🧮 math.GN 2019-06-30 reviewed
     Order homotopies give coincidence points in b-metric spaces

     A new approach to coincidence and common fixed points under a homotopy of families of mappings in $b$-metric spaces

     Anuradha Gupta +1
121. 🧮 math.GN 2019-06-28 reviewed
     Statistical convergence defined for nets using directed sets

     Statistical convergence of nets through directed sets

     AR. Murugan +2
122. 🧮 math.GN 2019-06-26 reviewed
     Metric turns risk-measure space into metric space with pointwise topology

     On a metric on the space of monetary risk measures

     Sh. A. Ayupov +1
123. 🧮 math.GN 2019-06-26 reviewed
     Every T0 space has a well-filterification

     Existence of well-filterifications of $T_0$ topological spaces

     Guohua Wu +3
124. 🧮 math.LO 2019-06-25 reviewed
     Topological many-one degrees of real functions fully described

     Topological reducibilities for discontinuous functions and their structures

     Takayuki Kihara
125. 🧮 math.GN 2019-06-24 reviewed
     Z's Golomb space has exactly two self-homeomorphisms

     The Golomb topology on a Dedekind domain and the group of units of its quotients

     Dario Spirito
126. 🧮 math.GR 2019-06-23 reviewed
     Random subgroups of free groups admit only inner automorphisms

     Random subgroups, automorphisms, splittings

     Vincent Guirardel +1
127. 🧮 math.GR 2019-06-19 reviewed
     Semigroup extension preserves regularity iff original semigroup does

     Extensions of semigroups by symmetric inverse semigroups of a bounded finite rank

     Oleg Gutik +1