Tạp chí Hình học Geometricorum

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Three Pappus chains inside the arbelos: some identitites - Giovanni Lucca

LTTK CTV, 5/10/19

Trả lời:

0

Đọc:

457

LTTK CTV

5/10/19
onstruction of triangle from a vertex and the feet of two angle bisectors - Harold Connelly, Nikolaos Dergiades and Jean-Pierre Ehrmann

LTTK CTV, 5/10/19

Trả lời:

0

Đọc:

574

LTTK CTV

5/10/19
A visual proof of the Erdos-Mordell inequality - Claudi Alsina and Roger B Nelsen

LTTK CTV, 5/10/19

Trả lời:

0

Đọc:

564

LTTK CTV

5/10/19
Bicevian Tucker circles - Bernard Gibert

LTTK CTV, 5/10/19

Trả lời:

0

Đọc:

464

LTTK CTV

5/10/19
Orthocycles, bicentrics, and orthodiagonals - Paris Pamfilos

LTTK CTV, 5/10/19

Trả lời:

0

Đọc:

471

LTTK CTV

5/10/19
Ceva collineations - Clark Kimberling

LTTK CTV, 5/10/19

Trả lời:

0

Đọc:

507

LTTK CTV

5/10/19
Midcircles and the arbelos - Eric Danneels and Floor van Lamoen

LTTK CTV, 5/10/19

Trả lời:

0

Đọc:

465

LTTK CTV

5/10/19
The method of the punctured containers - Tom M. Apostol and Mamikon A. Mnatsakanian

LTTK CTV, 5/10/19

Trả lời:

0

Đọc:

444

LTTK CTV

5/10/19
A simple construction of the golden ratio - Jingcheng Tong and Sidney Kung

LTTK CTV, 5/10/19

Trả lời:

0

Đọc:

471

LTTK CTV

5/10/19
A stronger triangle inequality for neutral geometry - Melissa Baker and Robert Powers

LTTK CTV, 5/10/19

Trả lời:

0

Đọc:

473

LTTK CTV

5/10/19
The edge-tangent sphere of a circumscriptible tetrahedron - Yu-Dong Wu and Zhi-Hua Zhang

LTTK CTV, 5/10/19

Trả lời:

0

Đọc:

446

LTTK CTV

5/10/19
On a porism associated with the Euler and Droz-Farny lines - Christopher Bradley, David Monk and Geoff Smith

LTTK CTV, 5/10/19

Trả lời:

0

Đọc:

736

LTTK CTV

5/10/19
Euler's triangle determination problem - Joseph Stern

LTTK CTV, 5/10/19

Trả lời:

0

Đọc:

437

LTTK CTV

5/10/19
Some constructions related to the Kiepert hyperbola - Paul Yiu

LTTK CTV, 5/10/19

Trả lời:

0

Đọc:

478

LTTK CTV

5/10/19
Hansen's right triangle theorem, its converse and a generalization - Amy Bell

LTTK CTV, 5/10/19

Trả lời:

0

Đọc:

580

LTTK CTV

5/10/19
Some geometric constructions - Jean-Pierre Ehrmann

LTTK CTV, 5/10/19

Trả lời:

0

Đọc:

468

LTTK CTV

5/10/19
Square wreaths around hexagons - Floor van Lamoen

LTTK CTV, 5/10/19

Trả lời:

0

Đọc:

456

LTTK CTV

5/10/19
Two Brahmagupta problems - K. R. S. Sastry

LTTK CTV, 5/10/19

Trả lời:

0

Đọc:

449

LTTK CTV

5/10/19
Intersecting circles and their inner tangent circle - Max A. Tran

LTTK CTV, 5/10/19

Trả lời:

0

Đọc:

460

LTTK CTV

5/10/19
On two remarkable lines related to a quadrilateral - Alexei Myakishev

LTTK CTV, 5/10/19

Trả lời:

0

Đọc:

438

LTTK CTV

5/10/19
On the derivative of a vertex polynomial - James L. Parish

LTTK CTV, 5/10/19

Trả lời:

0

Đọc:

465

LTTK CTV

5/10/19
Translated triangle perspective to a reference triangle - Clark Kimberling

LTTK CTV, 5/10/19

Trả lời:

0

Đọc:

474

LTTK CTV

5/10/19
A note on the barycentric square root of Kiepert perspectors - Khoa Lu Nguyen

LTTK CTV, 5/10/19

Trả lời:

0

Đọc:

517

LTTK CTV

5/10/19
Formulas among diagonals in the regular polygon and the Catalan numbers - Matthew Hudelson

LTTK CTV, 5/10/19

Trả lời:

0

Đọc:

420

LTTK CTV

5/10/19
On triangles with vertices on the angle bisectors - Eric Danneels

LTTK CTV, 5/10/19

Trả lời:

0

Đọc:

474

LTTK CTV

5/10/19
On butterflies inscribed in a quadrilateral - Zvonko Cerin

LTTK CTV, 5/10/19

Trả lời:

0

Đọc:

448

LTTK CTV

5/10/19
The Droz-Farny theorem and related topics - Charles Thas

LTTK CTV, 5/10/19

Trả lời:

0

Đọc:

433

LTTK CTV

5/10/19
On some theorems of Poncelet and Carnot - Huub van Kempen

LTTK CTV, 5/10/19

Trả lời:

0

Đọc:

474

LTTK CTV

5/10/19
A synthetic proof and generalization of Bellavitis' theorem - Nikolaos Dergiades

LTTK CTV, 5/10/19

Trả lời:

0

Đọc:

467

LTTK CTV

5/10/19
The Simmons conics - Bernard Gibert

LTTK CTV, 5/10/19

Trả lời:

0

Đọc:

460

LTTK CTV

5/10/19
Pedals on circumradii and the Jerabek center - Quang Tuan Bui

LTTK CTV, 5/10/19

Trả lời:

0

Đọc:

534

LTTK CTV

5/10/19
A simple perspectivity - Eric Danneels

LTTK CTV, 5/10/19

Trả lời:

0

Đọc:

457

LTTK CTV

5/10/19
The Feuerbach point and Euler lines - Bogdan Suceava and Paul Yiu

LTTK CTV, 5/10/19

Trả lời:

0

Đọc:

484

LTTK CTV

5/10/19
A projectivity characterized by the Pythagorean relation - Wladimir Boskoff and Bogdan Suceava

LTTK CTV, 5/10/19

Trả lời:

0

Đọc:

561

LTTK CTV

5/10/19
A theorem by Giusto Bellavitis on a class of quadrilaterals - Eisso J. Atzema

LTTK CTV, 5/10/19

Trả lời:

0

Đọc:

458

LTTK CTV

5/10/19
A 4-step construction of the golden ratio - Kurt Hofstetter

LTTK CTV, 5/10/19

Trả lời:

0

Đọc:

691

LTTK CTV

5/10/19
The orthic-of-intouch and intouch-of-orthic triangles - Sandor Kiss

LTTK CTV, 5/10/19

Trả lời:

0

Đọc:

1,276

LTTK CTV

5/10/19
A very short and simple proof of ``the most elementary theorem" of euclidean geometry - Mowaffaq Hajja

LTTK CTV, 5/10/19

Trả lời:

0

Đọc:

527

LTTK CTV

5/10/19
On the generating motions and the convexity of a well-known curve in hyperbolic geometry - Dieter Ruoff

LTTK CTV, 5/10/19

Trả lời:

0

Đọc:

464

LTTK CTV

5/10/19
Concurrent medians of (2n+1)-gons - Matthew Hudelson

LTTK CTV, 5/10/19

Trả lời:

0

Đọc:

421

LTTK CTV

5/10/19
Grassmann cubics and desmic structures - Wilson Stothers

LTTK CTV, 5/10/19

Trả lời:

0

Đọc:

472

LTTK CTV

5/10/19
Pseudo-incircles - Stanley Rabinowitz

LTTK CTV, 5/10/19

Trả lời:

0

Đọc:

587

LTTK CTV

5/10/19
A generalization of Power's Archimedean circles - Hiroshi Okumura and Masayuki Watanabe

LTTK CTV, 5/10/19

Trả lời:

0

Đọc:

501

LTTK CTV

5/10/19
Products and reciprocals of diagonals length ratios in the regular polygon - Anne Fontaine and Susan Hurley

LTTK CTV, 5/10/19

Trả lời:

0

Đọc:

452

LTTK CTV

5/10/19
Archimedean adventures - Floor van Lamoen

LTTK CTV, 5/10/19

Trả lời:

0

Đọc:

445

LTTK CTV

5/10/19
The locations of the Brocard points - Christopher J. Bradley and Geoff C. Smith

LTTK CTV, 5/10/19

Trả lời:

0

Đọc:

605

LTTK CTV

5/10/19
The locations of triangle centers - Christopher J. Bradley and Geoff C. Smith

LTTK CTV, 5/10/19

Trả lời:

0

Đọc:

700

LTTK CTV

5/10/19
A characterization of the centroid using June Lester's shape function - Mowaffaq Hajja and Margarita Spirova

LTTK CTV, 5/10/19

Trả lời:

0

Đọc:

501

LTTK CTV

5/10/19
Isocubics with concurrent normals - Bernard Gibert

LTTK CTV, 5/10/19

Trả lời:

0

Đọc:

457

LTTK CTV

5/10/19
The cyclic complex of a cyclic quadrilateral - Paris Pamfilos

LTTK CTV, 5/10/19

Trả lời:

0

Đọc:

457

LTTK CTV

5/10/19
A note on the Droz-Farny theorem - Charles Thas

LTTK CTV, 5/10/19

Trả lời:

0

Đọc:

477

LTTK CTV

5/10/19
A conic associated with the Euler line - Juan Rodriguez, Paula Manuel and Paulo Semiao

LTTK CTV, 5/10/19

Trả lời:

0

Đọc:

481

LTTK CTV

5/10/19
On the mixtilinear incircles and excircles - Khoa Lu Nguyen and Juan Carlos Salazar

LTTK CTV, 5/10/19

Trả lời:

0

Đọc:

584

LTTK CTV

5/10/19
A Gergonne analogue of the Steiner-Lehmus theorem - K. R. S. Sastry

LTTK CTV, 4/10/19

Trả lời:

0

Đọc:

468

LTTK CTV

4/10/19
Statics and the moduli space of triangles - Geoff C. Smith

LTTK CTV, 4/10/19

Trả lời:

0

Đọc:

449

LTTK CTV

4/10/19
The Eppstein centers and the Kenmotu points - Eric Danneels

LTTK CTV, 4/10/19

Trả lời:

0

Đọc:

529

LTTK CTV

4/10/19
On the existence of triangles with given circumcircle, incircle, and one additional element - Victor Oxman

LTTK CTV, 4/10/19

Trả lời:

0

Đọc:

462

LTTK CTV

4/10/19
On the complement of the Schiffler point - Khoa Lu Nguyen

LTTK CTV, 4/10/19

Trả lời:

0

Đọc:

690

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:

689

LTTK CTV

4/10/19
On an Erdos inscribed triangle inequality - Ricardo M. Torrejon

LTTK CTV, 4/10/19

Trả lời:

0

Đọc:

436

LTTK CTV

4/10/19
Division of a segment in the golden section with ruler and rusty compass - Kurt Hofstetter

LTTK CTV, 4/10/19

Trả lời:

0

Đọc:

608

LTTK CTV

4/10/19
Some more Archimedean circles in the arbelos - Frank Power

LTTK CTV, 4/10/19

Trả lời:

0

Đọc:

445

LTTK CTV

4/10/19
Another proof of van Lamoen's theorem and its converse - Minh Ha Nguyen

LTTK CTV, 4/10/19

Trả lời:

0

Đọc:

581

LTTK CTV

4/10/19
Construction of Brahmagupta n-gons - K. R. S. Sastry

LTTK CTV, 4/10/19

Trả lời:

0

Đọc:

447

LTTK CTV

4/10/19
On the geometry of equilateral triangles - Jozsef Sandor

LTTK CTV, 4/10/19

Trả lời:

0

Đọc:

448

LTTK CTV

4/10/19
Circles and triangle centers associated with the Lucas circles - Peter J. C. Moses

LTTK CTV, 4/10/19

Trả lời:

0

Đọc:

492

LTTK CTV

4/10/19
Elegant geometric constructions - Paul Yiu

LTTK CTV, 4/10/19

Trả lời:

0

Đọc:

420

LTTK CTV

4/10/19
Some Brocard-like points of a triangle - Sadi Abu-Saymeh and Mowaffaq Hajja

LTTK CTV, 4/10/19

Trả lời:

0

Đọc:

465

LTTK CTV

4/10/19
A maximal property of cyclic quadrilaterals - Antreas Varverakis

LTTK CTV, 4/10/19

Trả lời:

0

Đọc:

462

LTTK CTV

4/10/19
Triangle-conic porism - Aad Goddijn and Floor van Lamoen

LTTK CTV, 4/10/19

Trả lời:

0

Đọc:

469

LTTK CTV

4/10/19
A simple construction of a triangle from its centroid, incenter, and a vertex - Eric Danneels

LTTK CTV, 4/10/19

Trả lời:

0

Đọc:

508

LTTK CTV

4/10/19
On a problem regarding the n-sectors of a triangle - Bart De Bruyn

LTTK CTV, 4/10/19

Trả lời:

0

Đọc:

471

LTTK CTV

4/10/19
The arbelos in $n$-aliquot parts - Hiroshi Okumura and Masayuki Watanabe

LTTK CTV, 4/10/19

Trả lời:

0

Đọc:

433

LTTK CTV

4/10/19
Triangle centers with linear intercepts and linear subangles - Sadi Abu-Saymeh and Mowaffaq Hajja

LTTK CTV, 4/10/19

Trả lời:

0

Đọc:

436

LTTK CTV

4/10/19
On the maximal inflation of two squares - Thierry Gensane and Philippe Ryckelynck

LTTK CTV, 4/10/19

Trả lời:

0

Đọc:

454

LTTK CTV

4/10/19
On the existence of triangles with given lengths of one side, the opposite and an adjacent angle bisectors - Victor Oxman

LTTK CTV, 4/10/19

Trả lời:

0

Đọc:

554

LTTK CTV

4/10/19
A synthetic proof of Goormaghtigh's generalization of Musselman's theorem - Khoa Lu Nguyen

LTTK CTV, 4/10/19

Trả lời:

0

Đọc:

479

LTTK CTV

4/10/19
Where are the conjugates - Steve Sigur

LTTK CTV, 4/10/19

Trả lời:

0

Đọc:

487

LTTK CTV

4/10/19
A generalization of the Kiepert hyperbola - Darij Grinberg and Alex Myakishev

LTTK CTV, 4/10/19

Trả lời:

0

Đọc:

489

LTTK CTV

4/10/19
The twin circles of Archimedes in a skewed arbelos - Hiroshi Okumura and Masayuki Watanabe

LTTK CTV, 4/10/19

Trả lời:

0

Đọc:

509

LTTK CTV

4/10/19
A projective generalization of the Droz-Farny line theorem - Jean-Pierre Ehrmann and Floor van Lamoen

LTTK CTV, 4/10/19

Trả lời:

0

Đọc:

646

LTTK CTV

4/10/19
A purely synthetic proof of the Droz-Farny line theorem - Jean-Louis Ayme

LTTK CTV, 4/10/19

Trả lời:

0

Đọc:

528

LTTK CTV

4/10/19
On the existence of triangles with given lengths of one side and two adjacent angle bisectors - Victor Oxman

LTTK CTV, 4/10/19

Trả lời:

0

Đọc:

454

LTTK CTV

4/10/19
Inscribed squares - Floor van Lamoen

LTTK CTV, 4/10/19

Trả lời:

0

Đọc:

521

LTTK CTV

4/10/19
Further inequalities of Erdos-Mordell type - Walther Janous

LTTK CTV, 4/10/19

Trả lời:

0

Đọc:

608

LTTK CTV

4/10/19
Another proof of Fagnano's inequality - Nguyen Minh Ha

LTTK CTV, 4/10/19

Trả lời:

0

Đọc:

437

LTTK CTV

4/10/19
Generalized Mandart conics - Bernard Gibert

LTTK CTV, 4/10/19

Trả lời:

0

Đọc:

443

LTTK CTV

4/10/19
On some actions of D_3 on the triangle - Paris Pamfilos

LTTK CTV, 4/10/19

Trả lời:

0

Đọc:

547

LTTK CTV

4/10/19
Garfunkel's inequality - Minh Ha Nguyen and Nikolaos Dergiades

LTTK CTV, 4/10/19

Trả lời:

0

Đọc:

519

LTTK CTV

4/10/19
A grand tour of pedals of conics - Roger C. Alperin

LTTK CTV, 4/10/19

Trả lời:

0

Đọc:

431

LTTK CTV

4/10/19
A theorem on orthology centers - Eric Danneels and Nikolaos Dergiades

LTTK CTV, 4/10/19

Trả lời:

0

Đọc:

551

LTTK CTV

4/10/19
The intouch triangle and the OI-line - Eric Danneels

LTTK CTV, 4/10/19

Trả lời:

0

Đọc:

840

LTTK CTV

4/10/19
Three pairs of congruent circles in a circle - Li C. Tien

LTTK CTV, 4/10/19

Trả lời:

0

Đọc:

461

LTTK CTV

4/10/19
Minimal chords in angular regions - Nicolae Anghel

LTTK CTV, 4/10/19

Trả lời:

0

Đọc:

472

LTTK CTV

4/10/19
The vertex-midpoint-centroid triangles - Zvonko Cerin

LTTK CTV, 4/10/19

Trả lời:

0

Đọc:

439

LTTK CTV

4/10/19
On the Schiffler point - Charles Thas

LTTK CTV, 4/10/19

Trả lời:

0

Đọc:

541

LTTK CTV

4/10/19
On the intercepts of the OI-line - Lev Emelyanov

LTTK CTV, 4/10/19

Trả lời:

0

Đọc:

630

LTTK CTV

4/10/19
Triangles with special isotomic conjugate pairs - K. R. S. Sastry

LTTK CTV, 4/10/19

Trả lời:

0

Đọc:

541

LTTK CTV

4/10/19
A simple construction of the congruent isoscelizers point - Eric Danneels

LTTK CTV, 4/10/19

Trả lời:

0

Đọc:

500

LTTK CTV

4/10/19
Signed distances and the Erdos-Mordell inequality - Nikolaos Dergiades

LTTK CTV, 4/10/19

Trả lời:

0

Đọc:

458

LTTK CTV

4/10/19

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