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Related papers: Log canonical inversion of adjunction

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We establish a kind of subadjunction formula for quasi-log canonical pairs. As an application, we prove that a connected projective quasi-log canonical pair whose quasi-log canonical class is anti-ample is simply connected and rationally…

Algebraic Geometry · Mathematics 2020-09-02 Osamu Fujino

We use the theory of motivic integration for singular spaces to give a characterization of minimal log discrepencies in terms of the codimension of certain subsets of spaces of arcs. This is done for arbitrary pairs $(X,Y)$, with $X$ normal…

Algebraic Geometry · Mathematics 2009-11-07 Lawrence Ein , Mircea Mustata , Takehiko Yasuda

This note analyzes in terms of categorial proof theory some standard assumptions about negation in the absence of any other connective. It is shown that the assumptions for an involutive negation, like classical negation, make a kind of…

Logic · Mathematics 2007-05-23 K. Dosen , Z. Petric

In this paper we give an elementary proof of the Zariski-Lipman conjecture for log canonical spaces.

Algebraic Geometry · Mathematics 2015-01-12 Stefan Heuver

The paper presents a counterexample to the Hodge conjecture.

General Mathematics · Mathematics 2020-07-28 Jorma Jormakka

In this article we give two independent proofs of the positive characteristic analog of the log terminal inversion of adjunction. We show that for a pair $(X, S+B)$ in characteristic $p>0$, if $(S^n, B_{S^n})$ is strongly $F$-regular, then…

Algebraic Geometry · Mathematics 2015-04-17 Omprokash Das

We describe a canonical form for linear differential operators that are formally self-adjoint or formally skew-adjoint.

Analysis of PDEs · Mathematics 2007-05-23 Michael G. Eastwood , A. Rod Gover

We present the elementary properties of log canonical centers of log varieties.

Algebraic Geometry · Mathematics 2007-05-23 Florin Ambro

Upper moduli part of adjunction is introduced and its basic property are discussed. The moduli part satisfies the BP in the case of rational multiplicities and is nef in the maximal case.

Algebraic Geometry · Mathematics 2021-11-03 V. V. Shokurov

We prove that small deformations of canonical singularities are canonical.

alg-geom · Mathematics 2007-05-23 Yujiro Kawamata

This brief note concerns the invertibility of certain alternant matrices. In particular those that consisting of polynomials and products of polynomials and logarithms are shown to be invertible under appropriate conditions on the degrees…

Classical Analysis and ODEs · Mathematics 2021-08-26 Jeff Ledford

Using Singular Rescaling We Prove Some Bifurcation Results. This note Presents short proofs for some Bifurcation results which had been appeared with other authors.

Dynamical Systems · Mathematics 2024-04-16 Ali Taghavi

A simple proof of the celebrated theorem of Lee and Yang is attempted in this short note.

Statistical Mechanics · Physics 2012-01-17 Ranjan Kumar Ghosh

In this paper we prove the Zariski-Lipman conjecture for log canonical spaces.

Algebraic Geometry · Mathematics 2017-05-17 Stéphane Druel

In this paper, I prove a very general extension theorem for log pluricanonical systems. The main application of this extension theorem is (together with Kawamata's subadjunction theorem) to give an optimal subadjunction theorem which…

Algebraic Geometry · Mathematics 2007-11-05 Hajime Tsuji

We give new examples of terminal and log canonical singularities.

Algebraic Geometry · Mathematics 2011-07-15 János Kollár

In this short note,we correct a well-known counter example of the famous book of Dacorogna[2].

Functional Analysis · Mathematics 2018-11-29 Yan Tang , Shiqing Zhang

In this paper, we give a simple counter example to the famous Hodge conjecture.

General Mathematics · Mathematics 2013-01-23 Renyi Ma

A short, fairly self-contained proof is given of the Poincar\'e Conjecture. In the previous version there was an error on Page 8. This gap has now been filled.

General Mathematics · Mathematics 2025-09-26 M. J. Dunwoody

We give counterexamples to Okounkov's log-concavity conjecture for Littlewood-Richardson coefficients.

Representation Theory · Mathematics 2007-05-23 Calin Chindris , Harm Derksen , Jerzy Weyman