{"title":"The McKay–Navarro conjecture for the prime 2","authors":"L. Ruhstorfer , A.A. Schaeffer Fry","doi":"10.1016/j.aim.2025.110369","DOIUrl":"10.1016/j.aim.2025.110369","url":null,"abstract":"<div><div>We complete the proof of the McKay–Navarro conjecture (also known as the Galois–McKay conjecture) for the prime 2, by completing the proof of the inductive McKay–Navarro conditions introduced by Navarro–Späth–Vallejo for this prime.</div></div>","PeriodicalId":50860,"journal":{"name":"Advances in Mathematics","volume":"477 ","pages":"Article 110369"},"PeriodicalIF":1.5,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144169958","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"K-theoretic Tate-Poitou duality at prime 2","authors":"Myungsin Cho","doi":"10.1016/j.aim.2025.110370","DOIUrl":"10.1016/j.aim.2025.110370","url":null,"abstract":"<div><div>We extend the result of Blumberg and Mandell on K-theoretic Tate-Poitou duality at odd primes which serves as a spectral refinement of the classical arithmetic Tate-Poitou duality. The duality is formulated for the <span><math><mi>K</mi><mo>(</mo><mn>1</mn><mo>)</mo></math></span>-localized algebraic K-theory of the ring of <em>p</em>-integers in a number field and its completion using the <span><math><msub><mrow><mi>Z</mi></mrow><mrow><mi>p</mi></mrow></msub></math></span>-Anderson duality. This paper completes the picture by addressing the prime 2, where the real embeddings of number fields introduce extra complexities. As an application, we identify the homotopy type at prime 2 of the homotopy fiber of the cyclotomic trace for the sphere spectrum in terms of the algebraic K-theory of the integers.</div></div>","PeriodicalId":50860,"journal":{"name":"Advances in Mathematics","volume":"477 ","pages":"Article 110370"},"PeriodicalIF":1.5,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144169957","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Proofs of Mizuno's conjectures on rank three Nahm sums of index (1,2,2)","authors":"Boxue Wang, Liuquan Wang","doi":"10.1016/j.aim.2025.110368","DOIUrl":"10.1016/j.aim.2025.110368","url":null,"abstract":"<div><div>Mizuno provided 15 examples of generalized rank three Nahm sums with symmetrizer <span><math><mrow><mi>diag</mi></mrow><mo>(</mo><mn>1</mn><mo>,</mo><mn>2</mn><mo>,</mo><mn>2</mn><mo>)</mo></math></span> which are conjecturally modular. Using the theory of Bailey pairs and some <em>q</em>-series techniques, we establish a number of triple sum Rogers–Ramanujan type identities. These identities confirm the modularity of all of Mizuno's examples except that two Nahm sums are sums of modular forms of weights 0 and 1. We also prove Mizuno's conjectural modular transformation formulas for two vector-valued functions consisting of Nahm sums with symmetrizers <span><math><mrow><mi>diag</mi></mrow><mo>(</mo><mn>1</mn><mo>,</mo><mn>1</mn><mo>,</mo><mn>2</mn><mo>)</mo></math></span> and <span><math><mrow><mi>diag</mi></mrow><mo>(</mo><mn>1</mn><mo>,</mo><mn>2</mn><mo>,</mo><mn>2</mn><mo>)</mo></math></span>.</div></div>","PeriodicalId":50860,"journal":{"name":"Advances in Mathematics","volume":"477 ","pages":"Article 110368"},"PeriodicalIF":1.5,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144147773","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Tomoyuki Arakawa , Thomas Creutzig , Kazuya Kawasetsu
{"title":"Weight representations of affine Kac-Moody algebras and small quantum groups","authors":"Tomoyuki Arakawa , Thomas Creutzig , Kazuya Kawasetsu","doi":"10.1016/j.aim.2025.110365","DOIUrl":"10.1016/j.aim.2025.110365","url":null,"abstract":"<div><div>We study the weight modules over affine Kac-Moody algebras from the view point of vertex algebras, and determine the abelian category of weight modules for the simple affine vertex algebra <span><math><msub><mrow><mi>L</mi></mrow><mrow><mi>k</mi></mrow></msub><mo>(</mo><msub><mrow><mi>sl</mi></mrow><mrow><mn>2</mn></mrow></msub><mo>)</mo></math></span> at any non-integral admissible level <em>k</em>. In particular, we show that the principal block of the category of weight modules over admissible <span><math><msub><mrow><mi>L</mi></mrow><mrow><mi>k</mi></mrow></msub><mo>(</mo><msub><mrow><mi>sl</mi></mrow><mrow><mn>2</mn></mrow></msub><mo>)</mo></math></span> is equivalent to that of the corresponding (unrolled) small quantum group.</div></div>","PeriodicalId":50860,"journal":{"name":"Advances in Mathematics","volume":"477 ","pages":"Article 110365"},"PeriodicalIF":1.5,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144147774","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Newman's conjecture for the partition function modulo integers with at least two distinct prime divisors","authors":"Dohoon Choi , Youngmin Lee","doi":"10.1016/j.aim.2025.110367","DOIUrl":"10.1016/j.aim.2025.110367","url":null,"abstract":"<div><div>Let <em>M</em> be a positive integer and <span><math><mi>p</mi><mo>(</mo><mi>n</mi><mo>)</mo></math></span> be the number of partitions of a positive integer <em>n</em>. Newman's Conjecture asserts that for each integer <em>r</em>, there are infinitely many positive integers <em>n</em> such that<span><span><span><math><mi>p</mi><mo>(</mo><mi>n</mi><mo>)</mo><mo>≡</mo><mi>r</mi><mspace></mspace><mo>(</mo><mrow><mi>mod</mi></mrow><mspace></mspace><mi>M</mi><mo>)</mo><mo>.</mo></math></span></span></span> For a positive integer <em>d</em>, let <span><math><msub><mrow><mi>B</mi></mrow><mrow><mi>d</mi></mrow></msub></math></span> be the set of positive integers <em>M</em> such that the number of prime divisors of <em>M</em> is <em>d</em>. In this paper, we prove that for each positive integer <em>d</em>, the density of the set of positive integers <em>M</em> for which Newman's Conjecture holds in <span><math><msub><mrow><mi>B</mi></mrow><mrow><mi>d</mi></mrow></msub></math></span> is 1. Furthermore, we study an analogue of Newman's Conjecture for weakly holomorphic modular forms on <span><math><msub><mrow><mi>Γ</mi></mrow><mrow><mn>0</mn></mrow></msub><mo>(</mo><mi>N</mi><mo>)</mo></math></span> with nebentypus, and this applies to <em>t</em>-core partitions and generalized Frobenius partitions with <em>h</em>-colors.</div></div>","PeriodicalId":50860,"journal":{"name":"Advances in Mathematics","volume":"477 ","pages":"Article 110367"},"PeriodicalIF":1.5,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144138678","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The linear stability of non-Kähler Calabi-Yau metrics","authors":"Kuan-Hui Lee","doi":"10.1016/j.aim.2025.110366","DOIUrl":"10.1016/j.aim.2025.110366","url":null,"abstract":"<div><div>Non-Kähler Calabi-Yau theory is a newly developed subject and it arises naturally in mathematical physics and generalized geometry. The relevant geometries are pluriclosed metrics which are critical points of the generalized Einstein–Hilbert action which is an extension of Perelman's <span><math><mi>F</mi></math></span>-functional. In this work, we study the critical points of the generalized Einstein-Hilbert action and discuss the stability of critical points which are defined as pluriclosed steady solitons. We proved that all compact Bismut–Hermitian–Einstein metrics are linearly stable which is non-Kähler analogue of the stability results of Ricci solitons from Tian, Zhu <span><span>[27]</span></span> and Hall, Murphy <span><span>[10]</span></span>, Koiso <span><span>[13]</span></span>. In addition, all compact Bismut-flat pluriclosed metrics with <span><math><mo>(</mo><mn>2</mn><mi>n</mi><mo>−</mo><mn>1</mn><mo>)</mo></math></span>-positive Ricci curvature are strictly linearly stable when the complex structure is fixed.</div></div>","PeriodicalId":50860,"journal":{"name":"Advances in Mathematics","volume":"477 ","pages":"Article 110366"},"PeriodicalIF":1.5,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144134704","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Tame maximal weights, relative types and valuations","authors":"Shijie Bao , Qi'an Guan , Zhitong Mi , Zheng Yuan","doi":"10.1016/j.aim.2025.110364","DOIUrl":"10.1016/j.aim.2025.110364","url":null,"abstract":"<div><div>In this article, we obtain a class of tame maximal weights (Zhou weights). Using Tian functions (the function of jumping numbers with respect to the exponents of a holomorphic function or the multiples of a plurisubharmonic function) as a main tool, we establish an expression of relative types (Zhou numbers) to these tame maximal weights in integral form, which shows that the relative types satisfy tropical multiplicativity and tropical additivity. Thus, the relative types to Zhou weights are valuations (Zhou valuations) on the ring of germs of holomorphic functions. We use Tian functions and Zhou numbers to measure the singularities of plurisubharmonic functions, involving jumping numbers and multiplier ideal sheaves. Especially, the relative types to Zhou weights characterize the division relations of the ring of germs of holomorphic functions. Finally, we consider a global version of Zhou weights on domains in <span><math><msup><mrow><mi>C</mi></mrow><mrow><mi>n</mi></mrow></msup></math></span>, which is a generalization of the pluricomplex Green functions, and we obtain some properties of them, including continuity and some approximation results.</div></div>","PeriodicalId":50860,"journal":{"name":"Advances in Mathematics","volume":"477 ","pages":"Article 110364"},"PeriodicalIF":1.5,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144134706","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Characteristic forms of complex Cartan geometries II","authors":"Benjamin McKay","doi":"10.1016/j.aim.2025.110360","DOIUrl":"10.1016/j.aim.2025.110360","url":null,"abstract":"<div><div>Characteristic class relations in Dolbeault cohomology follow from the existence of a holomorphic Cartan geometry (for example, a holomorphic conformal structure or a holomorphic projective connection). These relations can be calculated directly from the representation theory of the structure group, without selecting any metric or connection or having any knowledge of the Dolbeault cohomology groups of the manifold. This paper improves on its predecessor <span><span>[35]</span></span> by allowing noncompact and non-Kähler manifolds and by deriving invariants in cohomology of vector bundles, not just in scalar Dolbeault cohomology, and computing relations involving Chern–Simons invariants in Dolbeault cohomology. For the geometric structures previously considered in its predecessor, this paper gives stronger results and simplifies the computations. It gives the first results on Chern–Simons invariants of Cartan geometries.</div></div>","PeriodicalId":50860,"journal":{"name":"Advances in Mathematics","volume":"477 ","pages":"Article 110360"},"PeriodicalIF":1.5,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144134705","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ji Guo , Khoa D. Nguyen , Chia-Liang Sun , Julie Tzu-Yueh Wang
{"title":"Vojta's abc conjecture for algebraic tori and applications over function fields","authors":"Ji Guo , Khoa D. Nguyen , Chia-Liang Sun , Julie Tzu-Yueh Wang","doi":"10.1016/j.aim.2025.110358","DOIUrl":"10.1016/j.aim.2025.110358","url":null,"abstract":"<div><div>We prove Vojta's generalized abc conjecture for algebraic tori over function fields with exceptional sets that can be determined effectively. Additionally, we establish a version of the conjecture for toric varieties. As an application, we investigate the Lang-Vojta Conjecture for varieties of log general type that are ramified covers of <span><math><msubsup><mrow><mi>G</mi></mrow><mrow><mi>m</mi></mrow><mrow><mi>n</mi></mrow></msubsup></math></span> over function fields. In particular, we consider the case of <span><math><msup><mrow><mi>P</mi></mrow><mrow><mi>n</mi></mrow></msup><mo>∖</mo><mi>D</mi></math></span>, where <em>D</em> is a hypersurface over a function field in <span><math><msup><mrow><mi>P</mi></mrow><mrow><mi>n</mi></mrow></msup></math></span> with <span><math><mi>n</mi><mo>+</mo><mn>1</mn></math></span> irreducible components and <span><math><mi>deg</mi><mo></mo><mi>D</mi><mo>≥</mo><mi>n</mi><mo>+</mo><mn>2</mn></math></span>. Our methods also apply to the complex situation, enabling us to find explicit exceptional sets for the corresponding case of Vojta's general abc conjecture (complex version) and the Green-Griffiths-Lang conjecture.</div></div>","PeriodicalId":50860,"journal":{"name":"Advances in Mathematics","volume":"476 ","pages":"Article 110358"},"PeriodicalIF":1.5,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144115047","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"On global smooth solutions to the 2D isentropic and irrotational Chaplygin gases with short pulse data","authors":"Bingbing Ding , Zhouping Xin , Huicheng Yin","doi":"10.1016/j.aim.2025.110362","DOIUrl":"10.1016/j.aim.2025.110362","url":null,"abstract":"<div><div>This paper establishes the global existence of smooth solutions to the 2D isentropic and irrotational Euler equations for Chaplygin gases with a general class of short pulse initial data, which, in particular, resolves in this special case, the Majda's conjecture on the non-formation of shock waves of solutions from smooth initial data for multi-dimensional nonlinear symmetric systems which are totally linearly degenerate. Comparing to the 4D case, the major difficulties in this paper are caused by the slower time decay and the largeness of the solutions to the 2D quasilinear wave equation, some new auxiliary energies and multipliers are introduced to overcome these difficulties.</div></div>","PeriodicalId":50860,"journal":{"name":"Advances in Mathematics","volume":"476 ","pages":"Article 110362"},"PeriodicalIF":1.5,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144115050","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}