Tạp chí Hình học Geometricorum

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Integer triangles with R/r = N - Allan MacLeod

LTTK CTV, 9/10/19

Trả lời:

0

Đọc:

860

LTTK CTV

9/10/19
Some properties of inversions in alpha plane - Ozcan Gelişgen and Temel Ermis

LTTK CTV, 12/10/19

Trả lời:

0

Đọc:

620

LTTK CTV

12/10/19
A New Proof of Erdos-Mordell Inequality - Robert Bosch

LTTK CTV, 11/10/19

Trả lời:

0

Đọc:

531

LTTK CTV

11/10/19
A Construction of the Golden Ratio in an Arbitrary Triangle - Tran Quang Hung

LTTK CTV, 11/10/19

Trả lời:

0

Đọc:

500

LTTK CTV

11/10/19
Jigsawing a quadrangle from a triangle - Floor van Lamoen

LTTK CTV, 9/10/19

Trả lời:

0

Đọc:

491

LTTK CTV

9/10/19
Integral Triangles and Trapezoids Pairs with a Common Area and a Common Perimeter - Yong Zhang, Junyao Peng, and Jiamin Wang

LTTK CTV, 11/10/19

Trả lời:

0

Đọc:

477

LTTK CTV

11/10/19
A Remarkable Theorem on Eight Circles - Gabor Gevay

LTTK CTV, 12/10/19

Trả lời:

0

Đọc:

470

LTTK CTV

12/10/19
The radical axis of the circumcircle and incircle of a bicentric quadrilateral - Michael Diao and Andrew Wu

LTTK CTV, 12/10/19

Trả lời:

0

Đọc:

452

LTTK CTV

12/10/19
The Relativity of Conics and Circles - Stefan Liebscher and Dierck-E. Liebscher

LTTK CTV, 10/10/19

Trả lời:

0

Đọc:

451

LTTK CTV

10/10/19
Simple Proofs of Feuerbach’s Theorem and Emelyanov’s Theorem - Nikolaos Dergiades and Tran Quang Hung

LTTK CTV, 11/10/19

Trả lời:

0

Đọc:

447

LTTK CTV

11/10/19
The symmedian point and concurrent antiparallel images - Shao-Cheng Liu

LTTK CTV, 9/10/19

Trả lời:

0

Đọc:

430

LTTK CTV

9/10/19
Some Archimedean circles in an arbelos - Le Viet An and Emmanuel A. J. Garcia

LTTK CTV, 12/10/19

Trả lời:

0

Đọc:

421

LTTK CTV

12/10/19
On the circumscribing ellipse of three concentric ellipses - George E. Lefkaditis, Thomas L. Toulias, and Stelios Markatis

LTTK CTV, 10/10/19

Trả lời:

0

Đọc:

411

LTTK CTV

10/10/19
The Treatise on the Chord and Sine - Mohammad K. Azarian

LTTK CTV, 11/10/19

Trả lời:

0

Đọc:

401

LTTK CTV

11/10/19
The Blundon Theorem in an Acute Triangle and Some Consequences - Mihaly Bencze and Marius Dragan

LTTK CTV, 11/10/19

Trả lời:

0

Đọc:

399

LTTK CTV

11/10/19
An Extension of Miquel’s Six-Circles Theorem - Gabor Gevay

LTTK CTV, 11/10/19

Trả lời:

0

Đọc:

398

LTTK CTV

11/10/19
Counting the number of isosceles triangles in rectangular regular grids - Chai Wah Wu

LTTK CTV, 10/10/19

Trả lời:

0

Đọc:

397

LTTK CTV

10/10/19
A Polynomial Approach to the Bloom of Thymaridas and the Apollonius’ Circle - Gerasimos T. Soldatos

LTTK CTV, 12/10/19

Trả lời:

0

Đọc:

391

LTTK CTV

12/10/19
Another simple construction of the golden section with equilateral triangles - Tran Quang Hung

LTTK CTV, 10/10/19

Trả lời:

0

Đọc:

391

LTTK CTV

10/10/19
Steinhaus' problem on partition of a triangle - Apoloniusz Tyszka

LTTK CTV, 6/10/19

Trả lời:

0

Đọc:

387

LTTK CTV

6/10/19
Radii of circles in Apollonius' problem - Milorad R. Stevanovic, Predrag B. Petrovic, and Marina M. Stevanovic

LTTK CTV, 10/10/19

Trả lời:

0

Đọc:

387

LTTK CTV

10/10/19
The periambic constellation with Altitudes, perpendicular bisectors, and other radical axes in a triangle - Dixon J. Jones

LTTK CTV, 10/10/19

Trả lời:

0

Đọc:

387

LTTK CTV

10/10/19
Another purely synthetic proof of Lemoine's theorem - Nguyen Tien Dung

LTTK CTV, 10/10/19

Trả lời:

0

Đọc:

386

LTTK CTV

10/10/19
The area of a bicentric quadrilateral - Martin Josefsson

LTTK CTV, 9/10/19

Trả lời:

0

Đọc:

385

LTTK CTV

9/10/19
Orthocenters of simplices in hyperbolic spaces - Kenzi Sato

LTTK CTV, 10/10/19

Trả lời:

0

Đọc:

383

LTTK CTV

10/10/19
Do dogs know the bifurcation locus - Li Zhou

LTTK CTV, 10/10/19

Trả lời:

0

Đọc:

383

LTTK CTV

10/10/19
Properties of a Pascal points circle in a quadrilateral with perpendicular diagonals - David Fraivert

LTTK CTV, 10/10/19

Trả lời:

0

Đọc:

378

LTTK CTV

10/10/19
Heptagonal triangle and trigonometric identities - Kai Wang

LTTK CTV, 12/10/19

Trả lời:

0

Đọc:

377

LTTK CTV

12/10/19
A Geometric Inequality for Cyclic Quadrilaterals - Mark Shattuck

LTTK CTV, 11/10/19

Trả lời:

0

Đọc:

375

LTTK CTV

11/10/19
Integer sequences and circle chains inside a hyperbola - Giovanni Lucca

LTTK CTV, 12/10/19

Trả lời:

0

Đọc:

375

LTTK CTV

12/10/19
Parallelograms Inscribed in Convex Quadrangles - Nikolaos Dergiades

LTTK CTV, 11/10/19

Trả lời:

0

Đọc:

374

LTTK CTV

11/10/19
Division of an angle into equal parts and construction of regular polygons by multi-fold origami - Jorge C. Lucero

LTTK CTV, 12/10/19

Trả lời:

0

Đọc:

372

LTTK CTV

12/10/19
The Miquel points, pseudocircumcenter, and Euler-Poncelet point of a complete quadrilateral - Michal Rolinek and Le Anh Dung

LTTK CTV, 9/10/19

Trả lời:

0

Đọc:

371

LTTK CTV

9/10/19
Properties of the tangents to a circle that forms Pascal points on the sides of a convex quadrilateral - David Fraivert

LTTK CTV, 10/10/19

Trả lời:

0

Đọc:

370

LTTK CTV

10/10/19
Heron triangles with a Gergonne-cevian-and-median perspective - K. R. S. Sastry

LTTK CTV, 25/9/19

Trả lời:

0

Đọc:

369

LTTK CTV

25/9/19
Some properties of the Lemoine point - Alexei Myakishev

LTTK CTV, 4/10/19

Trả lời:

0

Đọc:

368

LTTK CTV

4/10/19
Applications of homogeneous functions to geometric inequalities and identities in the euclidean plane - Wladimir G. Boskoff and Bogdan D. Suceava

LTTK CTV, 4/10/19

Trả lời:

0

Đọc:

368

LTTK CTV

4/10/19
Geometric Inequalities in Pedal Quadrilaterals - Sahlar Meherrem

LTTK CTV, 11/10/19

Trả lời:

0

Đọc:

368

LTTK CTV

11/10/19
Pairs of Congruent-Like Quadrilaterals that are not Congruent - Giuseppina Anatriello, Francesco Laudano, and Giovanni Vincenzi

LTTK CTV, 11/10/19

Trả lời:

0

Đọc:

367

LTTK CTV

11/10/19
Similar pedal and cevian triangles - Jean-Pierre Ehrmann

LTTK CTV, 4/10/19

Trả lời:

0

Đọc:

363

LTTK CTV

4/10/19
The golden ratio and regular polygons - Manfred Pietsch

LTTK CTV, 10/10/19

Trả lời:

0

Đọc:

361

LTTK CTV

10/10/19
A simple synthetic proof of Lemoine's theorem - Tran Quang Hung

LTTK CTV, 10/10/19

Trả lời:

0

Đọc:

358

LTTK CTV

10/10/19
Algebraic Equations of All Involucre Conics in the Configuration of the c-Inscribed Equilateral Triangles - Blas Herrera

LTTK CTV, 11/10/19

Trả lời:

0

Đọc:

354

LTTK CTV

11/10/19
The Feuerbach point and the Fuhrmann triangle - Nguyen Thanh Dung

LTTK CTV, 10/10/19

Trả lời:

0

Đọc:

354

LTTK CTV

10/10/19
A Family of Triangles for which Two Specific Triangle Centers Have the Same Coordinates - Francisco Javier Garcıa Capitan

LTTK CTV, 11/10/19

Trả lời:

0

Đọc:

353

LTTK CTV

11/10/19
Primitive Heronian Triangles With Integer Inradius and Exradii - Li Zhou

LTTK CTV, 11/10/19

Trả lời:

0

Đọc:

351

LTTK CTV

11/10/19
Adjugate points and adjugate triangle - Sandor Nagydobai Kiss

LTTK CTV, 12/10/19

Trả lời:

0

Đọc:

351

LTTK CTV

12/10/19
A 4-step construction of the golden ratio - Kurt Hofstetter

LTTK CTV, 5/10/19

Trả lời:

0

Đọc:

350

LTTK CTV

5/10/19
Haruki's lemma and a related locus problem - Yaroslav Bezverkhnyev

LTTK CTV, 6/10/19

Trả lời:

0

Đọc:

350

LTTK CTV

6/10/19
On the Euler reflection point - Cosmin Pohoata

LTTK CTV, 9/10/19

Trả lời:

0

Đọc:

350

LTTK CTV

9/10/19
The Simson triangle and its properties - Todor Zaharinov

LTTK CTV, 10/10/19

Trả lời:

0

Đọc:

348

LTTK CTV

10/10/19
Brahmagupta quadrilaterals - K. R. S. Sastry

LTTK CTV, 4/10/19

Trả lời:

0

Đọc:

348

LTTK CTV

4/10/19
Chains of tangent circles inscribed in a triangle - Giovanni Lucca

LTTK CTV, 10/10/19

Trả lời:

0

Đọc:

348

LTTK CTV

10/10/19
New Constructions of Triangle from α, b − c, tA - Martina Stepanova

LTTK CTV, 11/10/19

Trả lời:

0

Đọc:

348

LTTK CTV

11/10/19
Remarks for The Twin Circles of Archimedes in a Skewed Arbelos by Okumura and Watanabe - Hiroshi Okumura and Saburou Saitoh

LTTK CTV, 11/10/19

Trả lời:

0

Đọc:

347

LTTK CTV

11/10/19
Further inequalities of Erdos-Mordell type - Walther Janous

LTTK CTV, 4/10/19

Trả lời:

0

Đọc:

345

LTTK CTV

4/10/19
A Model of Nowhere Geodesic Plane Geometry in which the Triangle Inequality Fails Everywhere - John Donnelly

LTTK CTV, 11/10/19

Trả lời:

0

Đọc:

344

LTTK CTV

11/10/19
Triangle centers associated with the Malfatti circles - Milorad Stevanovic

LTTK CTV, 4/10/19

Trả lời:

0

Đọc:

344

LTTK CTV

4/10/19
Two Hinged Regular n-sided Polygons - Manfred Pietsch

LTTK CTV, 11/10/19

Trả lời:

0

Đọc:

344

LTTK CTV

11/10/19
A note on the Feuerbach point - Lev Emelyanov and Tatiana Emelyanova

LTTK CTV, 4/10/19

Trả lời:

0

Đọc:

342

LTTK CTV

4/10/19
Antiparallels and concurrency of Euler lines - Nikolaos Dergiades and Paul Yiu

LTTK CTV, 4/10/19

Trả lời:

0

Đọc:

342

LTTK CTV

4/10/19
Orthopoles and the Pappus theorem - Atul Dixit and Darij Grinberg

LTTK CTV, 4/10/19

Trả lời:

0

Đọc:

342

LTTK CTV

4/10/19
The locations of the Brocard points - Christopher J. Bradley and Geoff C. Smith

LTTK CTV, 5/10/19

Trả lời:

0

Đọc:

341

LTTK CTV

5/10/19
The first sharp gyrotriangle inequality in M bius gyrovector space - Andrei Moldavanov

LTTK CTV, 10/10/19

Trả lời:

0

Đọc:

340

LTTK CTV

10/10/19
Pedals of the Poncelet Pencil and Fontene Points - Roger C. Alperin

LTTK CTV, 11/10/19

Trả lời:

0

Đọc:

340

LTTK CTV

11/10/19
Extremes areas of triangles in Poncelet's closure theorem - Mirko Radic

LTTK CTV, 4/10/19

Trả lời:

0

Đọc:

339

LTTK CTV

4/10/19
The Soddy circles - Nikolaus Dergiades

LTTK CTV, 6/10/19

Trả lời:

0

Đọc:

338

LTTK CTV

6/10/19
Reflections in triangle geometry - Antreas P. Hatzipolakis and Paul Yiu

LTTK CTV, 9/10/19

Trả lời:

0

Đọc:

337

LTTK CTV

9/10/19
On the Feuerbach triangle - Dasari Naga Vijay Krishna

LTTK CTV, 10/10/19

Trả lời:

0

Đọc:

337

LTTK CTV

10/10/19
A New Proof of Pitot Theorem by AM-GM Inequality - Robert Bosch

LTTK CTV, 11/10/19

Trả lời:

0

Đọc:

337

LTTK CTV

11/10/19
A projectivity characterized by the Pythagorean relation - Wladimir Boskoff and Bogdan Suceava

LTTK CTV, 5/10/19

Trả lời:

0

Đọc:

334

LTTK CTV

5/10/19
Sawayama and Thebault's theorem - Jean-Louis Ayme

LTTK CTV, 4/10/19

Trả lời:

0

Đọc:

334

LTTK CTV

4/10/19
On some elementary properties of quadrilaterals - Paris Pamfilos

LTTK CTV, 10/10/19

Trả lời:

0

Đọc:

332

LTTK CTV

10/10/19
Orthopoles and Variable Flanks - Floor van Lamoen

LTTK CTV, 11/10/19

Trả lời:

0

Đọc:

332

LTTK CTV

11/10/19
Revisiting the Infinite Surface Area of Gabriel’s Horn - Lubomir P. Markov

LTTK CTV, 11/10/19

Trả lời:

0

Đọc:

330

LTTK CTV

11/10/19
Another proof of van Lamoen's theorem and its converse - Minh Ha Nguyen

LTTK CTV, 4/10/19

Trả lời:

0

Đọc:

329

LTTK CTV

4/10/19
Euler's formula and Poncelet's porism - Lev Emelyanov and Tatiana Emelyanova

LTTK CTV, 4/10/19

Trả lời:

0

Đọc:

326

LTTK CTV

4/10/19
Integer Sequences and Circle Chains Inside a Circular Segment - Giovanni Lucca

LTTK CTV, 11/10/19

Trả lời:

0

Đọc:

326

LTTK CTV

11/10/19
A new proof of Yun's inequality or bicentric quadrilaterals - Martin Josefsson

LTTK CTV, 9/10/19

Trả lời:

0

Đọc:

326

LTTK CTV

9/10/19
Iterated harmonic divisions and the golden ratio - Frank Leitenberger

LTTK CTV, 10/10/19

Trả lời:

0

Đọc:

326

LTTK CTV

10/10/19
Orthocorrespondence and orthopivotal cubics - Bernard Gibert

LTTK CTV, 4/10/19

Trả lời:

0

Đọc:

325

LTTK CTV

4/10/19
A Remark on the Arbelos and the Regular Star Polygon - Hiroshi Okumura

LTTK CTV, 11/10/19

Trả lời:

0

Đọc:

324

LTTK CTV

11/10/19
On tripolars and parabolas - Paris Pamfilos

LTTK CTV, 9/10/19

Trả lời:

0

Đọc:

324

LTTK CTV

9/10/19
Gergonne meets Sangaku - Paris Pamfilos

LTTK CTV, 10/10/19

Trả lời:

0

Đọc:

324

LTTK CTV

10/10/19
The Love for the Three Conics - Stefan Liebscher and Dierck-E. Liebscher

LTTK CTV, 12/10/19

Trả lời:

0

Đọc:

323

LTTK CTV

12/10/19
Harmonic Mean and Division by Zero - Hiroshi Okumura and Saburou Saitoh

LTTK CTV, 11/10/19

Trả lời:

0

Đọc:

322

LTTK CTV

11/10/19
Kitta's double-locked problem - J. Marshall Unger

LTTK CTV, 9/10/19

Trả lời:

0

Đọc:

321

LTTK CTV

9/10/19
Alhazen's circular billiard problem - Debdyuti Banerjee and Nikolaos Dergiades

LTTK CTV, 9/10/19

Trả lời:

0

Đọc:

321

LTTK CTV

9/10/19
A remark on Archimedean incircles of an isosceles triangle - Hiroshi Okumura

LTTK CTV, 12/10/19

Trả lời:

0

Đọc:

320

LTTK CTV

12/10/19
A visual proof of the Erdos-Mordell inequality - Claudi Alsina and Roger B Nelsen

LTTK CTV, 5/10/19

Trả lời:

0

Đọc:

320

LTTK CTV

5/10/19
The Kariya problem and related constructions - Paul Yiu

LTTK CTV, 9/10/19

Trả lời:

0

Đọc:

319

LTTK CTV

9/10/19
Hansen's right triangle theorem, its converse and a generalization - Amy Bell

LTTK CTV, 5/10/19

Trả lời:

0

Đọc:

317

LTTK CTV

5/10/19
Side Disks of a Spherical Great Polygon - Purevsuren Damba and Uuganbaatar Ninjbat

LTTK CTV, 11/10/19

Trả lời:

0

Đọc:

317

LTTK CTV

11/10/19
Rectangles Circumscribing a Quadrangle - Paris Pamfilos

LTTK CTV, 11/10/19

Trả lời:

0

Đọc:

316

LTTK CTV

11/10/19
Revisiting the Quadrisection Problem of Jacob Bernoulli - Carl Eberhart

LTTK CTV, 10/10/19

Trả lời:

0

Đọc:

316

LTTK CTV

10/10/19
The Feuerbach point and reflections of the Euler line - Jan Vonk

LTTK CTV, 7/10/19

Trả lời:

0

Đọc:

315

LTTK CTV

7/10/19
Three conics derived from perpendicular lines - Alberto Mendoza

LTTK CTV, 9/10/19

Trả lời:

0

Đọc:

315

LTTK CTV

9/10/19
Apollonian circumcircles of IFS fractals - Jozsef Vass

LTTK CTV, 10/10/19

Trả lời:

0

Đọc:

314

LTTK CTV

10/10/19
Orthopoles, flanks, and Vecten points - Todor Zaharinov

LTTK CTV, 10/10/19

Trả lời:

0

Đọc:

313

LTTK CTV

10/10/19
About a strengthened version of Erdos-Mordell inequality - Dan Stefan Marinescu and Mihai Monea

LTTK CTV, 10/10/19

Trả lời:

0

Đọc:

313

LTTK CTV

10/10/19

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